Finite Group Databasebeta

← C2×#22620892 #33957152

Subgroups — C2×#22620892 #33957152

Order 18688.

2294 conjugacy classes of subgroups.

The subgroup lattice has 638 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×#14556579C211yesmaximal, characteristic, complemented
2#22620892C2116yesmaximal, direct product factor
3C2×#17988969C212yesmaximal, complemented
4C2×#17988944C212yesmaximal, complemented
5C2×#17988809C212yesmaximal, complemented
6C2×#17988802C212yesmaximal, complemented
7C2×#17988742C211yesmaximal, characteristic, complemented
8C2×#17988725C211yesmaximal, characteristic, complemented
9C2×#17988737C211yesmaximal, characteristic, complemented
10C2×#17988720C211yesmaximal, characteristic
11C2×#17988640C211yesmaximal, characteristic, complemented
12C2×#529×C73C211yesmaximal, characteristic, complemented
13C23×Dic146C2211yescharacteristic
14C23×D292C2211yescharacteristic
15C22×#11924018C2212yescomplemented
16C22×#11924016C2212yescomplemented
17C22×#11924015C2212yes—
18C22×#11924013C2212yes—
19C2×#14556579—21no—
20C2×#14556579—21no—
21C2×#14556579—24no—
22C2×#14556579C2212yes—
23C2×#14556579C2212yes—
24C2×#14556579C2218yescomplemented
25C22×#11924005—21no—
26C22×#11924005—21no—
27#17988969C22116yescomplemented
28#17988944C22116yescomplemented
29#17988809C22116yescomplemented
30#17988802C22116yescomplemented
31#17988742C2218yescomplemented
32#17988737C2218yescomplemented
33#17988725C2218yescomplemented
34#17988720C2218yes—
35#17988640C2218yescomplemented
36C2×C4⋊#10596831C2212yescomplemented
37C2×#14556514C2212yescomplemented
38C2×#14556514C2212yescomplemented
39C2×#14556511C2212yes—
40C2×#14556511C2212yes—
41C2×C22⋊#10596831C2211yescharacteristic
42C2×C22⋊#10596831C2211yescharacteristic
43C2×C4×#10596831C2212yescomplemented
44#529×C73—24no—
45#529×C73C2218yescomplemented
46C2×#126×C73—21no—
47C2×#125×C73C2211yescharacteristic, complemented
48C2×#124×C73C2211yescharacteristic, complemented
49C2×#123×C73—21no—
50C2×C22⋊Q8×C73C2211yescharacteristic
51C2×#121×C73C2211yescharacteristic
52C2×C4×Q8×C73C2211yescharacteristic, complemented
53C2×C4×D4×C73—21no—
54C2×C4×D4×C73C2211yescharacteristic, complemented
55C2×#117×C73—21no—
56C22×C42×C73C2211yescharacteristic
57C24×D73—21no—
58C22×Dic146—21no—
59C22×Dic146—22no—
60C22×Dic146—44no—
61C22×Dic146C2312yes—
62C22×Dic146C2314yes—
63C22×D292—21no—
64C22×D292—22no—
65C22×D292—44no—
66C22×D292C2312yes—
67C22×D292C2314yes—
68C23×Dic73—21no—
69C2×#11924018—44no—
70C2×#11924018C2318yescomplemented
71C2×#11924016—44no—
72C2×#11924016C2318yescomplemented
73C2×#11924015—44no—
74C2×#11924015C2318yes—
75C2×#11924013—44no—
76C2×#11924013C2318yes—
77C22×#10596831C2312yes—
78C22×#10596831C2312yes—
79#14556579—24no—
80#14556579—24no—
81#14556579—28no—
82#14556579—28no—
83#14556579C2318yes—
84#14556579C2318yes—
85C2×#11924005—22no—
86C2×#11924005—22no—
87C2×#11924005—22no—
88C2×#11924005—22no—
89C2×#11924005—28no—
90C2×#11924005—28no—
91C4⋊#10596831C2318yescomplemented
92#14556514C2318yescomplemented
93#14556514C2318yescomplemented
94#14556511C2318yes—
95#14556511C2318yes—
96C22⋊#10596831C2314yes—
97C22⋊#10596831C2314yes—
98C4×#10596831C2318yescomplemented
99C22×Q8×C73C2311yescharacteristic
100C22×D4×C73—21no—
101C22×D4×C73C2311yescharacteristic
102C23×C4×C73—21no—
103C23×C4×C73D411yescharacteristic
104C23×C4×C73D411yescharacteristic
105C23×C4×C73C2311yescharacteristic
106#126×C73—28no—
107#125×C73—22no—
108#125×C73C2314yescomplemented
109#124×C73—22no—
110#124×C73C2314yescomplemented
111#123×C73—28no—
112C22⋊Q8×C73—22no—
113C22⋊Q8×C73C2314yes—
114#121×C73—22no—
115#121×C73C2314yes—
116C4×Q8×C73—22no—
117C4×Q8×C73C2314yescomplemented
118C4×D4×C73—28no—
119C4×D4×C73—22no—
120C4×D4×C73C2314yescomplemented
121#117×C73—28no—
122C2×C4⋊C4×C73—21no—
123C2×C4⋊C4×C73—21no—
124C2×C4⋊C4×C73—21no—
125C2×C4⋊C4×C73—21no—
126C2×C4⋊C4×C73C2311yescharacteristic
127C2×C4⋊C4×C73C2311yescharacteristic
128C2×C22⋊C4×C73—21no—
129C2×C22⋊C4×C73—21no—
130C2×C22⋊C4×C73—21no—
131C2×C22⋊C4×C73—21no—
132C2×C22⋊C4×C73—21no—
133C2×C42×C73—21no—
134C2×C42×C73D411yescharacteristic
135C2×C42×C73D411yescharacteristic
136C2×C42×C73D414yes—
137C2×C42×C73C2311yescharacteristic
138C2×C42×C73C2314yes—
139C2×C42×C73C2311yescharacteristic
140C23×D73—24no—
141C23×D73—22no—
142C23×D73—44no—
143C23×D73—44no—
144C23×D73—44no—
145C2×Dic146—24no—
146C2×Dic146—24no—
147C2×Dic146—24no—
148C2×Dic146—22no—
149C2×Dic146—48no—
150C2×Dic146—44no—
151C2×Dic146—48no—
152C2×Dic146C2414yes—
153C2×D292—24no—
154C2×D292—24no—
155C2×D292—24no—
156C2×D292—22no—
157C2×D292—48no—
158C2×D292—44no—
159C2×D292—48no—
160C2×D292C2414yes—
161C22×Dic73—24no—
162C22×Dic73—22no—
163C22×Dic73—44no—
164#11924018—48no—
165#11924016—48no—
166#11924015—48no—
167#11924013—48no—
168C2×#10596831—24no—
169C2×#10596831—24no—
170C2×#10596831C2414yes—
171C2×#10596831C2414yes—
172#11924005—28no—
173#11924005—28no—
174#11924005—28no—
175#11924005—28no—
176C24×C73—21no—
177C24×C73C2×D411yescharacteristic
178C2×Q8×C73—21no—
179C2×Q8×C73—24no—
180C2×Q8×C73C2412yes—
181C2×D4×C73—24no—
182C2×D4×C73—21no—
183C2×D4×C73—24no—
184C2×D4×C73—44no—
185C2×D4×C73C2412yes—
186C22×C4×C73—24no—
187C22×C4×C73—24no—
188C22×C4×C73—21no—
189C22×C4×C73—21no—
190C22×C4×C73—21no—
191C22×C4×C73—24no—
192C22×C4×C73—42no—
193C22×C4×C73—44no—
194C22×C4×C73C2×D411yescharacteristic
195C22×C4×C73C2×D411yescharacteristic
196C22×C4×C73C2×D412yes—
197C22×C4×C73C2×D411yescharacteristic
198C22×C4×C73C2×D411yescharacteristic
199C22×C4×C73C2×D411yescharacteristic
200C22×C4×C73C2×D414yes—
201C22×C4×C73C2×D414yes—
202C22×C4×C73C2412yes—
203C22×C4×C73C2411yescharacteristic
204C4⋊C4×C73—24no—
205C4⋊C4×C73—24no—
206C4⋊C4×C73—24no—
207C4⋊C4×C73—24no—
208C4⋊C4×C73—21no—
209C4⋊C4×C73—21no—
210C4⋊C4×C73C2412yes—
211C4⋊C4×C73C2412yes—
212C22⋊C4×C73—24no—
213C22⋊C4×C73—24no—
214C22⋊C4×C73—24no—
215C22⋊C4×C73—24no—
216C22⋊C4×C73—24no—
217C42×C73—24no—
218C42×C73C2×D414yes—
219C42×C73C2×D412yes—
220C42×C73C2×D412yes—
221C42×C73C2×D414yes—
222C42×C73C2412yes—
223C42×C73C2412yes—
224C23×C73—22no—
225C23×C73—22no—
226C23×C73—22no—
227C23×C73—42no—
228C23×C73—42no—
229C23×C73—42no—
230C23×C73#13514yes—
231C23×C73C22×D412yes—
232C23×C73C22×D411yescharacteristic
233C22×D73—24no—
234C22×D73—48no—
235C22×D73—48no—
236C22×D73—44no—
237C22×D73—48no—
238C22×D73—44no—
239C22×D73—44no—
240C22×D73—816no—
241Q8×C73—24no—
242Q8×C73—42no—
243D4×C73—24no—
244D4×C73—48no—
245D4×C73—42no—
246C2×C4×C73—22no—
247C2×C4×C73—28no—
248C2×C4×C73—22no—
249C2×C4×C73—22no—
250C2×C4×C73—22no—
251C2×C4×C73—22no—
252C2×C4×C73—24no—
253C2×C4×C73—24no—
254C2×C4×C73—22no—
255C2×C4×C73—22no—
256C2×C4×C73—22no—
257C2×C4×C73—44no—
258C2×C4×C73—48no—
259C2×C4×C73—42no—
260C2×C4×C73—42no—
261C2×C4×C73—42no—
262C2×C4×C73C22×D412yes—
263C2×C4×C73C22×D412yes—
264C2×C4×C73C22×D412yes—
265C2×C4×C73C22×D412yes—
266C2×C4×C73C22×D412yes—
267C2×C4×C73C22×D411yescharacteristic
268C2×C4×C73H(5,𝔽2)14yes—
269C2×C4×C73C2511yescharacteristic
270C2×Dic73—24no—
271C2×Dic73—48no—
272C2×Dic73—44no—
273D292—24no—
274D292—24no—
275D292—48no—
276D292—44no—
277Dic146—24no—
278Dic146—24no—
279Dic146—48no—
280Dic146—44no—
281#10596831—24no—
282#10596831—24no—
283C22×C73—22no—
284C22×C73—28no—
285C22×C73—22no—
286C22×C73—42no—
287C22×C73—42no—
288C22×C73—42no—
289C22×C73—84no—
290C22×C73#53512yes—
291C22×C73C2×#13514yes—
292C22×C73C2×#13512yes—
293C22×C73#57512yes—
294C22×C73C23×D411yescharacteristic
295C2×D73—44no—
296C2×D73—44no—
297C2×D73—44no—
298C2×D73—816no—
299C2×D73—88no—
300C4×C73—22no—
301C4×C73—22no—
302C4×C73—22no—
303C4×C73—22no—
304C4×C73—22no—
305C4×C73—42no—
306C4×C73—42no—
307C4×C73—42no—
308C4×C73#53512yes—
309C4×C73C2×H(5,𝔽2)12yes—
310Dic73—44no—
311C2×#3211—731nomaximal, Sylow
312C2×C73—24no—
313C2×C73—82no—
314C2×C73#321114yescomplemented
315C2×C73C2×#53511yescharacteristic
316C2×C73C22×#13511yescharacteristic
317C2×C73C2×#57511yescharacteristic
318D73—84no—
319C2×#529D7311yescharacteristic, complemented
320C22×#124—731no—
321#3211—7316no—
322C2×#495—732no—
323C2×#488—732no—
324C2×#464—732no—
325C2×#463—732no—
326C2×#451—731no—
327C2×#448—731no—
328C2×#450—731no—
329C2×#447—731no—
330C2×#431—731no—
331C73C2×#321111yescharacteristic, complemented, Sylow
332C23×Q8—731no—
333C23×D4—731no—
334C22×Q16—732no—
335C22×SD16—732no—
336C22×SD16—732no—
337C22×D8—732no—
338#529—24no—
339#529C2×D7318yescomplemented
340C2×#126—21no—
341C2×#125C2×D7311yescharacteristic, complemented
342C2×#124—732no—
343C2×#124—738no—
344C2×#124—732no—
345C2×#124—1461no—
346C2×#124—1461no—
347C2×#124—1464no—
348C2×#124C2×D7311yescharacteristic, complemented
349C2×#123—21no—
350C2×C22⋊Q8C2×D7311yescharacteristic
351C2×#121C2×D7311yescharacteristic
352C2×C4×Q8C2×D7311yescharacteristic, complemented
353C2×C4×D4—21no—
354C2×C4×D4C2×D7311yescharacteristic, complemented
355C2×#117—21no—
356C22×C22⋊C4—1461no—
357C22×C22⋊C4—1461no—
358C22×C42C2×D7311yescharacteristic
359#495—7316no—
360#488—7316no—
361#464—7316no—
362#463—7316no—
363#451—738no—
364#450—738no—
365#448—738no—
366#447—738no—
367#431—738no—
368C2×C4⋊C8—732no—
369C2×#103—732no—
370C2×#103—732no—
371C2×#102—732no—
372C2×#102—732no—
373C2×C22⋊C8—731no—
374C2×C22⋊C8—731no—
375C2×C4×C8—732no—
376C25—1461no—
377C22×Q8—2924no—
378C22×Q8—734no—
379C22×Q8—732no—
380C22×Q8—1462no—
381C22×Q8—1461no—
382C22×Q8C22×D7311yescharacteristic
383C22×D4—21no—
384C22×D4—2924no—
385C22×D4—734no—
386C22×D4—732no—
387C22×D4—1462no—
388C22×D4—1461no—
389C22×D4C22×D7311yescharacteristic
390C23×C4—21no—
391C23×C4—1461no—
392C23×C4C22⋊D7311yescharacteristic
393C23×C4C22⋊D7311yescharacteristic
394C23×C4C22×D7311yescharacteristic
395C2×Q16—2924no—
396C2×Q16—738no—
397C2×SD16—2924no—
398C2×SD16—2924no—
399C2×SD16—738no—
400C2×SD16—738no—
401C2×D8—2924no—
402C2×D8—738no—
403C22×C8—732no—
404C22×C8—732no—
405#126—28no—
406#125—22no—
407#125C22×D7314yescomplemented
408#124—22no—
409#124—738no—
410#124—738no—
411#124—1468no—
412#124—1464no—
413#124—1464no—
414#124—1468no—
415#124C22×D7314yescomplemented
416#123—28no—
417C22⋊Q8—22no—
418C22⋊Q8C22×D7314yes—
419#121—22no—
420#121C22×D7314yes—
421C4×Q8—22no—
422C4×Q8C22×D7314yescomplemented
423C4×D4—28no—
424C4×D4—22no—
425C4×D4C22×D7314yescomplemented
426#117—28no—
427C2×C4⋊C4—21no—
428C2×C4⋊C4—21no—
429C2×C4⋊C4—21no—
430C2×C4⋊C4—21no—
431C2×C4⋊C4C22×D7311yescharacteristic
432C2×C4⋊C4C22×D7311yescharacteristic
433C2×C22⋊C4—21no—
434C2×C22⋊C4—21no—
435C2×C22⋊C4—21no—
436C2×C22⋊C4—21no—
437C2×C22⋊C4—21no—
438C2×C22⋊C4—1468no—
439C2×C22⋊C4—1468no—
440C2×C22⋊C4—1462no—
441C2×C22⋊C4—1462no—
442C2×C22⋊C4—1462no—
443C2×C22⋊C4—1462no—
444C2×C42—21no—
445C2×C42C22⋊D7311yescharacteristic
446C2×C42C22⋊D7311yescharacteristic
447C2×C42C22⋊D7314yes—
448C2×C42C22×D7311yescharacteristic
449C2×C42C22×D7311yescharacteristic
450C2×C42C22×D7314yes—
451C4⋊C8—738no—
452#103—738no—
453#103—738no—
454#102—738no—
455#102—738no—
456C22⋊C8—734no—
457C22⋊C8—734no—
458C4×C8—738no—
459C24—21no—
460C24—2924no—
461C24—2924no—
462C24—2924no—
463C24—1464no—
464C24—1462no—
465C24C2×C22⋊D7311yescharacteristic
466C2×Q8—21no—
467C2×Q8—24no—
468C2×Q8—2924no—
469C2×Q8—2928no—
470C2×Q8—2928no—
471C2×Q8—734no—
472C2×Q8—1464no—
473C2×Q8—1464no—
474C2×Q8—1464no—
475C2×Q8—1462no—
476C2×Q8C23×D7312yes—
477C2×D4—24no—
478C2×D4—21no—
479C2×D4—24no—
480C2×D4—44no—
481C2×D4—2924no—
482C2×D4—2928no—
483C2×D4—2928no—
484C2×D4—734no—
485C2×D4—1464no—
486C2×D4—1462no—
487C2×D4—1464no—
488C2×D4—1464no—
489C2×D4C23×D7312yes—
490C22×C4—24no—
491C22×C4—24no—
492C22×C4—21no—
493C22×C4—21no—
494C22×C4—21no—
495C22×C4—24no—
496C22×C4—42no—
497C22×C4—44no—
498C22×C4—2924no—
499C22×C4—1464no—
500C22×C4—1462no—
501C22×C4C2×C22⋊D7312yes—
502C22×C4C2×C22⋊D7314yes—
503C22×C4C2×C22⋊D7311yescharacteristic
504C22×C4C2×C22⋊D7311yescharacteristic
505C22×C4C2×C22⋊D7311yescharacteristic
506C22×C4C2×C22⋊D7311yescharacteristic
507C22×C4C2×C22⋊D7311yescharacteristic
508C22×C4C2×C22⋊D7314yes—
509C22×C4C23×D7312yes—
510C22×C4C23×D7311yescharacteristic
511Q16—2928no—
512SD16—2928no—
513SD16—2928no—
514D8—2928no—
515C2×C8—734no—
516C2×C8—734no—
517C2×C8—1464no—
518C2×C8—1464no—
519C4⋊C4—24no—
520C4⋊C4—24no—
521C4⋊C4—24no—
522C4⋊C4—24no—
523C4⋊C4—21no—
524C4⋊C4—21no—
525C4⋊C4C23×D7312yes—
526C4⋊C4C23×D7312yes—
527C22⋊C4—24no—
528C22⋊C4—24no—
529C22⋊C4—24no—
530C22⋊C4—24no—
531C22⋊C4—24no—
532C22⋊C4—1468no—
533C22⋊C4—1468no—
534C22⋊C4—1468no—
535C22⋊C4—1468no—
536C42—24no—
537C42C2×C22⋊D7314yes—
538C42C2×C22⋊D7312yes—
539C42C2×C22⋊D7312yes—
540C42C2×C22⋊D7314yes—
541C42C23×D7312yes—
542C42C23×D7312yes—
543C23—22no—
544C23—22no—
545C23—22no—
546C23—42no—
547C23—42no—
548C23—42no—
549C23—2928no—
550C23—2928no—
551C23—2924no—
552C23—2924no—
553C23—2928no—
554C23—2924no—
555C23—58416no—
556C23—1464no—
557C23#1455661114yes—
558C23C22×C22⋊D7312yes—
559C23C22×C22⋊D7311yescharacteristic
560Q8—24no—
561Q8—42no—
562Q8—2928no—
563Q8—2924no—
564Q8—1464no—
565Q8—1464no—
566D4—24no—
567D4—48no—
568D4—42no—
569D4—2928no—
570D4—2924no—
571D4—1464no—
572D4—1464no—
573C2×C4—22no—
574C2×C4—22no—
575C2×C4—22no—
576C2×C4—28no—
577C2×C4—22no—
578C2×C4—22no—
579C2×C4—24no—
580C2×C4—24no—
581C2×C4—22no—
582C2×C4—22no—
583C2×C4—22no—
584C2×C4—44no—
585C2×C4—48no—
586C2×C4—42no—
587C2×C4—42no—
588C2×C4—42no—
589C2×C4—2928no—
590C2×C4—2924no—
591C2×C4—1464no—
592C2×C4C22×C22⋊D7312yes—
593C2×C4C22×C22⋊D7312yes—
594C2×C4C22×C22⋊D7312yes—
595C2×C4C22×C22⋊D7312yes—
596C2×C4C22×C22⋊D7312yes—
597C2×C4C22×C22⋊D7311yescharacteristic
598C2×C4#1455663714yes—
599C2×C4C24×D7311yescharacteristic
600C8—1464no—
601C8—1464no—
602C22—22no—
603C22—22no—
604C22—28no—
605C22—42no—
606C22—42no—
607C22—42no—
608C22—84no—
609C22—2924no—
610C22—2924no—
611C22—2924no—
612C22—58416no—
613C22—5848no—
614C22#1798915112yes—
615C22C2×#1455661114yes—
616C22C2×#1455661112yes—
617C22#1798938512yes—
618C22C23×C22⋊D7311yescharacteristic
619C4—22no—
620C4—22no—
621C4—22no—
622C4—22no—
623C4—22no—
624C4—42no—
625C4—42no—
626C4—42no—
627C4—2924no—
628C4#1798915112yes—
629C4C2×#1455663712yes—
630C2—24no—
631C2—82no—
632C2—5844no—
633C2#2262089214yesdirect product factor
634C2C2×#1798915111yescharacteristic
635C2C22×#1455661111yescharacteristic
636C2C2×#1798938511yescharacteristic
subgroupG/H
centerC23C22×C22⋊D73
commutator, cosocleC2×C4×C73C25
FrattiniC2×C4C24×D73
FittingC2×#529×C73C2
socleC23×C73C22×D4
prime radicalC2×#17988720C2
hypercenterC2×#529D73
hypocenterC73C2×#3211
LCSG ▷ C2×C4×C73 ▷ C2×C73 ▷ C73
UCSC1 ◁ C23 ◁ C22×C42 ◁ C2×#529

Complements

Splittings G = N ⋊ H with N normal; H ≅ G/N.

NH ≅ G/Ntype
1. C22×#14556579C2semidirect
2. #22620892C2direct (N × H)
3. C2×#17988969C2semidirect
4. C2×#17988944C2semidirect
5. C2×#17988809C2semidirect
6. C2×#17988802C2semidirect
7. C2×#17988742C2semidirect
8. C2×#17988725C2semidirect
9. C2×#17988737C2semidirect
11. C2×#17988640C2semidirect
12. C2×#529×C73C2semidirect
15. C22×#11924018C22semidirect
16. C22×#11924016C22semidirect
24. C2×#14556579C22semidirect
27. #17988969C22semidirect
28. #17988944C22semidirect
29. #17988809C22semidirect
30. #17988802C22semidirect
31. #17988742C22semidirect
32. #17988737C22semidirect
33. #17988725C22semidirect
35. #17988640C22semidirect
36. C2×C4⋊#10596831C22semidirect
37. C2×#14556514C22semidirect
38. C2×#14556514C22semidirect
43. C2×C4×#10596831C22semidirect
45. #529×C73C22semidirect
47. C2×#125×C73C22semidirect
48. C2×#124×C73C22semidirect
52. C2×C4×Q8×C73C22semidirect
54. C2×C4×D4×C73C22semidirect
70. C2×#11924018C23semidirect
72. C2×#11924016C23semidirect
91. C4⋊#10596831C23semidirect
92. #14556514C23semidirect
93. #14556514C23semidirect
98. C4×#10596831C23semidirect
108. #125×C73C23semidirect
110. #124×C73C23semidirect
117. C4×Q8×C73C23semidirect
120. C4×D4×C73C23semidirect
314. C2×C73#3211semidirect
319. C2×#529D73semidirect
331. C73C2×#3211semidirect
339. #529C2×D73semidirect
341. C2×#125C2×D73semidirect
348. C2×#124C2×D73semidirect
352. C2×C4×Q8C2×D73semidirect
354. C2×C4×D4C2×D73semidirect
407. #125C22×D73semidirect
415. #124C22×D73semidirect
422. C4×Q8C22×D73semidirect
425. C4×D4C22×D73semidirect
633. C2#22620892direct (N × H)

Maximal subgroups

By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.

subgroupindex
C22×#145565792
#226208922
C2×#179889692
C2×#179889442
C2×#179888092
C2×#179888022
C2×#179887422
C2×#179887252
C2×#179887372
C2×#179887202
C2×#179886402
C2×#529×C732
C2×#321173