Finite Group Databasebeta

← C31×#22925 #21479684

Subgroups — C31×#22925 #21479684

Order 7936.

846 conjugacy classes of subgroups.

The subgroup lattice has 618 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C2×C31×#484C211yesmaximal, characteristic
2C31×#2362C211yesmaximal, characteristic
3C31×#2344C211yesmaximal, characteristic
4C31×#1942C211yesmaximal, characteristic, complemented
5C31×#1935C211yesmaximal, characteristic, complemented
6C31×#1928C211yesmaximal, characteristic, complemented
7C31×#1921C211yesmaximal, characteristic, complemented
8C31×#1918C211yesmaximal, characteristic, complemented
9C31×#1894C211yesmaximal, characteristic
10C31×#1865C211yesmaximal, characteristic, complemented
11C31×#1854C211yesmaximal, characteristic
12C31×#1776C211yesmaximal, characteristic, complemented
13C4×C31×#103C211yesmaximal, characteristic, complemented
14C31×#1753C211yesmaximal, characteristic
15C31×#1736C211yesmaximal, characteristic
16C22×M16×C31C2211yescharacteristic
17C2×C31×C22⋊Q8C2211yescharacteristic
18C2×C4×Q8×C31C2211yescharacteristic
19C2×C31×#117—21no—
20C2×C31×#117C2211yescharacteristic
21C22×C4⋊C4×C31C2211yescharacteristic
22C31×#484C418yescomplemented
23C2×C31×#107C2211yescharacteristic
24C2×C31×#107C2211yescharacteristic
25C2×C31×#107C2211yescharacteristic
26C2×C31×#106C2211yescharacteristic
27C2×C31×#103C2211yescharacteristic
28C2×C31×#103C2211yescharacteristic
29C2×C31×#103C2211yescharacteristic
30C2×C31×#103C2211yescharacteristic
31C2×C31×C22⋊C8C2211yescharacteristic
32C2×C31×#97C2211yescharacteristic
33C2×C4×C8×C31C2211yescharacteristic
34C31×#391C2211yescharacteristic
35C31×#389C2211yescharacteristic
36C31×#389C2211yescharacteristic
37C31×#389C2211yescharacteristic
38C31×#388—21no—
39C31×#388—21no—
40C31×#387—21no—
41C31×#387—21no—
42C31×#387—21no—
43C31×#381—21no—
44C31×#380C2211yescharacteristic
45C4×C4⋊C4×C31—21no—
46C4×C4⋊C4×C31C2211yescharacteristic
47C4×C4⋊C4×C31C2211yescharacteristic
48C4×C4⋊C4×C31C2211yescharacteristic
49C4×C22⋊C4×C31C2211yescharacteristic
50C31×#340C2211yescharacteristic
51C31×#340C2211yescharacteristic
52C31×#340C2211yescharacteristic
53C31×#340C2211yescharacteristic
54C31×#340C2211yescharacteristic
55C31×#340C2211yescharacteristic
56C31×#340C2211yescharacteristic
57C31×#340C2211yescharacteristic
58C31×#336C2211yescharacteristic
59C31×#336C2211yescharacteristic
60C22×Q8×C31C2311yescharacteristic
61C23×C4×C31—21no—
62C23×C4×C31C2311yescharacteristic
63C2×M16×C31—22no—
64C2×M16×C31—22no—
65C2×M16×C31—41no—
66C22×C8×C31C2311yescharacteristic
67C22×C8×C31C2311yescharacteristic
68C22×C8×C31C2311yescharacteristic
69C22×C8×C31C2311yescharacteristic
70C31×C22⋊Q8—22no—
71C31×C22⋊Q8C2×C414yes—
72C4×Q8×C31—22no—
73C4×Q8×C31—41no—
74C31×#117—22no—
75C31×#117—44no—
76C31×#117—41no—
77C2×C4⋊C4×C31—21no—
78C2×C4⋊C4×C31—21no—
79C2×C4⋊C4×C31—22no—
80C2×C4⋊C4×C31—21no—
81C2×C4⋊C4×C31—21no—
82C2×C4⋊C4×C31—21no—
83C2×C4⋊C4×C31—21no—
84C2×C4⋊C4×C31C2×C414yes—
85C2×C4⋊C4×C31C2311yescharacteristic
86C2×C4⋊C4×C31C2311yescharacteristic
87C2×C4⋊C4×C31C2311yescharacteristic
88C2×C4⋊C4×C31C2311yescharacteristic
89C2×C4⋊C4×C31C2311yescharacteristic
90C2×C4⋊C4×C31C2311yescharacteristic
91C2×C4⋊C4×C31C2311yescharacteristic
92C2×C22⋊C4×C31—21no—
93C2×C22⋊C4×C31—21no—
94C2×C22⋊C4×C31—21no—
95C2×C22⋊C4×C31D411yescharacteristic
96C2×C22⋊C4×C31D411yescharacteristic
97C2×C42×C31—21no—
98C2×C42×C31—21no—
99C2×C42×C31—21no—
100C2×C42×C31—21no—
101C2×C42×C31—21no—
102C2×C42×C31C2311yescharacteristic
103C2×C42×C31C2311yescharacteristic
104C31×#107—41no—
105C31×#107C2×C414yes—
106C31×#107C2×C414yes—
107C31×#106—22no—
108C31×#103—22no—
109C31×#103—41no—
110C31×#103C2×C414yes—
111C31×#103C2×C414yes—
112C31×C22⋊C8C2×C414yes—
113C31×#97—22no—
114C4×C8×C31—41no—
115C31×#95—21no—
116C31×#95—21no—
117C31×#95—21no—
118C31×#95—21no—
119C31×#95—21no—
120C31×#95—21no—
121C31×#95—21no—
122C31×#95—21no—
123C31×#95—21no—
124C31×#95D411yescharacteristic
125C31×#95D411yescharacteristic
126C24×C31C2×D411yescharacteristic
127C2×Q8×C31—21no—
128C2×Q8×C31—21no—
129C2×Q8×C31—21no—
130C2×Q8×C31—21no—
131C2×Q8×C31—21no—
132C2×Q8×C31C22×C412yes—
133C22×C4×C31—21no—
134C22×C4×C31—21no—
135C22×C4×C31—21no—
136C22×C4×C31—21no—
137C22×C4×C31—24no—
138C22×C4×C31—21no—
139C22×C4×C31—21no—
140C22×C4×C31—21no—
141C22×C4×C31—21no—
142C22×C4×C31—21no—
143C22×C4×C31—21no—
144C22×C4×C31—21no—
145C22×C4×C31—21no—
146C22×C4×C31—42no—
147C22×C4×C31—42no—
148C22×C4×C31C22×C412yes—
149C22×C4×C31C2×D411yescharacteristic
150C22×C4×C31C2×D411yescharacteristic
151C22×C4×C31C2×D411yescharacteristic
152C22×C4×C31C2×D411yescharacteristic
153C22×C4×C31C2×D411yescharacteristic
154C22×C4×C31#4112yes—
155C22×C4×C31C2411yescharacteristic
156M16×C31—44no—
157C2×C8×C31—21no—
158C2×C8×C31—21no—
159C2×C8×C31—21no—
160C2×C8×C31—21no—
161C2×C8×C31—21no—
162C2×C8×C31—21no—
163C2×C8×C31—21no—
164C2×C8×C31—21no—
165C2×C8×C31—21no—
166C2×C8×C31C22×C412yes—
167C2×C8×C31C22×C412yes—
168C2×C8×C31#4112yes—
169C4⋊C4×C31—24no—
170C4⋊C4×C31—24no—
171C4⋊C4×C31—21no—
172C4⋊C4×C31—21no—
173C4⋊C4×C31—21no—
174C4⋊C4×C31—21no—
175C4⋊C4×C31—21no—
176C4⋊C4×C31—21no—
177C4⋊C4×C31—21no—
178C4⋊C4×C31—21no—
179C4⋊C4×C31—21no—
180C4⋊C4×C31—21no—
181C4⋊C4×C31—42no—
182C4⋊C4×C31—42no—
183C4⋊C4×C31—42no—
184C4⋊C4×C31—42no—
185C4⋊C4×C31C22×C412yes—
186C4⋊C4×C31C22×C412yes—
187C4⋊C4×C31C22×C412yes—
188C4⋊C4×C31#4112yes—
189C22⋊C4×C31—24no—
190C22⋊C4×C31—22no—
191C22⋊C4×C31—41no—
192C22⋊C4×C31—42no—
193C22⋊C4×C31—42no—
194C42×C31—21no—
195C42×C31—21no—
196C42×C31—21no—
197C42×C31—21no—
198C42×C31—42no—
199C42×C31—42no—
200C42×C31—42no—
201C42×C31—42no—
202C42×C31—42no—
203#22925C3111yesmaximal, characteristic, direct product factor, Sylow
204C23×C31—21no—
205C23×C31—21no—
206C23×C31—21no—
207C23×C31—21no—
208C23×C31—21no—
209C23×C31—21no—
210C23×C31C4×D412yes—
211C23×C31C22×D411yescharacteristic
212Q8×C31—22no—
213Q8×C31—22no—
214Q8×C31—41no—
215Q8×C31—41no—
216C2×C4×C31—21no—
217C2×C4×C31—21no—
218C2×C4×C31—21no—
219C2×C4×C31—21no—
220C2×C4×C31—22no—
221C2×C4×C31—22no—
222C2×C4×C31—22no—
223C2×C4×C31—22no—
224C2×C4×C31—22no—
225C2×C4×C31—22no—
226C2×C4×C31—22no—
227C2×C4×C31—22no—
228C2×C4×C31—21no—
229C2×C4×C31—22no—
230C2×C4×C31—21no—
231C2×C4×C31—21no—
232C2×C4×C31—21no—
233C2×C4×C31—21no—
234C2×C4×C31—21no—
235C2×C4×C31—21no—
236C2×C4×C31—21no—
237C2×C4×C31—21no—
238C2×C4×C31—48no—
239C2×C4×C31—41no—
240C2×C4×C31—41no—
241C2×C4×C31—41no—
242C2×C4×C31—41no—
243C2×C4×C31—41no—
244C2×C4×C31—41no—
245C2×C4×C31—41no—
246C2×C4×C31—41no—
247C2×C4×C31—41no—
248C2×C4×C31—41no—
249C2×C4×C31—41no—
250C2×C4×C31—41no—
251C2×C4×C31—41no—
252C2×C4×C31—41no—
253C2×C4×C31—41no—
254C2×C4×C31—41no—
255C2×C4×C31—41no—
256C2×C4×C31—41no—
257C2×C4×C31—41no—
258C2×C4×C31C4×D412yes—
259C2×C4×C31AGL(1,ℤ/8)12yes—
260C2×C4×C31C23×C411yescharacteristic
261C2×C4×C31C2×#4111yescharacteristic
262C2×C4×C31C2×#4111yescharacteristic
263C2×C4×C31C2×#4111yescharacteristic
264C2×C4×C31H(5,𝔽2)11yescharacteristic
265C2×C4×C312−1+411yescharacteristic
266C8×C31—22no—
267C8×C31—22no—
268C8×C31—22no—
269C8×C31—41no—
270C2×#484C2×C3111yescharacteristic
271#2362C2×C3111yescharacteristic
272#2344C2×C3111yescharacteristic
273#1942C2×C3111yescharacteristic, complemented
274#1935C2×C3111yescharacteristic, complemented
275#1928C2×C3111yescharacteristic, complemented
276#1921C2×C3111yescharacteristic, complemented
277#1918C2×C3111yescharacteristic, complemented
278#1894C2×C3111yescharacteristic
279#1865C2×C3111yescharacteristic, complemented
280#1854C2×C3111yescharacteristic
281#1776C2×C3111yescharacteristic, complemented
282C4×#103C2×C3111yescharacteristic, complemented
283#1753C2×C3111yescharacteristic
284#1736C2×C3111yescharacteristic
285C22×C31—22no—
286C22×C31—22no—
287C22×C31—22no—
288C22×C31—41no—
289C22×C31—41no—
290C22×C31—41no—
291C22×C31—41no—
292C22×C31C2×C4×D411yescharacteristic
293C22×C31#54611yescharacteristic
294C22×C31#54711yescharacteristic
295C22×C31C2×AGL(1,ℤ/8)11yescharacteristic
296C22×C31#57511yescharacteristic
297C22×C31#57811yescharacteristic
298C22×C31#57811yescharacteristic
299C4×C31—22no—
300C4×C31—22no—
301C4×C31—41no—
302C4×C31—41no—
303C4×C31—42no—
304C4×C31—42no—
305C4×C31—42no—
306C4×C31—42no—
307C4×C31—41no—
308C4×C31—42no—
309C4×C31—81no—
310C4×C31—81no—
311C4×C31—81no—
312C4×C31C4×#4111yescharacteristic
313C4×C31#52011yescharacteristic
314C4×C31#55111yescharacteristic
315C4×C31#55211yescharacteristic
316C22×M16C22×C3111yescharacteristic
317C2×C22⋊Q8C22×C3111yescharacteristic
318C2×C4×Q8C22×C3111yescharacteristic
319C2×#117—21no—
320C2×#117C22×C3111yescharacteristic
321C22×C4⋊C4C22×C3111yescharacteristic
322#484C4×C3118yescomplemented
323C2×#107C22×C3111yescharacteristic
324C2×#107C22×C3111yescharacteristic
325C2×#107C22×C3111yescharacteristic
326C2×#106C22×C3111yescharacteristic
327C2×#103C22×C3111yescharacteristic
328C2×#103C22×C3111yescharacteristic
329C2×#103C22×C3111yescharacteristic
330C2×#103C22×C3111yescharacteristic
331C2×C22⋊C8C22×C3111yescharacteristic
332C2×#97C22×C3111yescharacteristic
333C2×C4×C8C22×C3111yescharacteristic
334#391C22×C3111yescharacteristic
335#389C22×C3111yescharacteristic
336#389C22×C3111yescharacteristic
337#389C22×C3111yescharacteristic
338#388—21no—
339#388—21no—
340#387—21no—
341#387—21no—
342#387—21no—
343#381—21no—
344#380C22×C3111yescharacteristic
345C4×C4⋊C4—21no—
346C4×C4⋊C4C22×C3111yescharacteristic
347C4×C4⋊C4C22×C3111yescharacteristic
348C4×C4⋊C4C22×C3111yescharacteristic
349C4×C22⋊C4C22×C3111yescharacteristic
350#340C22×C3111yescharacteristic
351#340C22×C3111yescharacteristic
352#340C22×C3111yescharacteristic
353#340C22×C3111yescharacteristic
354#340C22×C3111yescharacteristic
355#340C22×C3111yescharacteristic
356#340C22×C3111yescharacteristic
357#340C22×C3111yescharacteristic
358#336C22×C3111yescharacteristic
359#336C22×C3111yescharacteristic
360C2×C31—42no—
361C2×C31#235911yescharacteristic
362C2×C31C4×AGL(1,ℤ/8)11yescharacteristic
363C2×C31#295011yescharacteristic
364C2×C31#330811yescharacteristic
365C2×C31#331511yescharacteristic
366C2×C31#335211yescharacteristic
367C2×C31#335311yescharacteristic
368C22×Q8C23×C3111yescharacteristic
369C23×C4—21no—
370C23×C4C23×C3111yescharacteristic
371C2×M16—22no—
372C2×M16—22no—
373C2×M16—41no—
374C22×C8C23×C3111yescharacteristic
375C22×C8C23×C3111yescharacteristic
376C22×C8C23×C3111yescharacteristic
377C22×C8C23×C3111yescharacteristic
378C22⋊Q8—22no—
379C22⋊Q8C2×C4×C3114yes—
380C4×Q8—22no—
381C4×Q8—41no—
382#117—22no—
383#117—44no—
384#117—41no—
385C2×C4⋊C4—21no—
386C2×C4⋊C4—21no—
387C2×C4⋊C4—22no—
388C2×C4⋊C4—21no—
389C2×C4⋊C4—21no—
390C2×C4⋊C4—21no—
391C2×C4⋊C4—21no—
392C2×C4⋊C4C2×C4×C3114yes—
393C2×C4⋊C4C23×C3111yescharacteristic
394C2×C4⋊C4C23×C3111yescharacteristic
395C2×C4⋊C4C23×C3111yescharacteristic
396C2×C4⋊C4C23×C3111yescharacteristic
397C2×C4⋊C4C23×C3111yescharacteristic
398C2×C4⋊C4C23×C3111yescharacteristic
399C2×C4⋊C4C23×C3111yescharacteristic
400C2×C22⋊C4—21no—
401C2×C22⋊C4—21no—
402C2×C22⋊C4—21no—
403C2×C22⋊C4D4×C3111yescharacteristic
404C2×C22⋊C4D4×C3111yescharacteristic
405C2×C42—21no—
406C2×C42—21no—
407C2×C42—21no—
408C2×C42—21no—
409C2×C42—21no—
410C2×C42C23×C3111yescharacteristic
411C2×C42C23×C3111yescharacteristic
412#107—41no—
413#107C2×C4×C3114yes—
414#107C2×C4×C3114yes—
415#106—22no—
416#103—22no—
417#103—41no—
418#103C2×C4×C3114yes—
419#103C2×C4×C3114yes—
420C22⋊C8C2×C4×C3114yes—
421#97—22no—
422C4×C8—41no—
423#95—21no—
424#95—21no—
425#95—21no—
426#95—21no—
427#95—21no—
428#95—21no—
429#95—21no—
430#95—21no—
431#95—21no—
432#95D4×C3111yescharacteristic
433#95D4×C3111yescharacteristic
434C31#2292511yescharacteristic, direct product factor, Sylow
435C24C2×D4×C3111yescharacteristic
436C2×Q8—21no—
437C2×Q8—21no—
438C2×Q8—21no—
439C2×Q8—21no—
440C2×Q8—21no—
441C2×Q8C22×C4×C3112yes—
442C22×C4—21no—
443C22×C4—21no—
444C22×C4—21no—
445C22×C4—21no—
446C22×C4—24no—
447C22×C4—21no—
448C22×C4—21no—
449C22×C4—21no—
450C22×C4—21no—
451C22×C4—21no—
452C22×C4—21no—
453C22×C4—21no—
454C22×C4—21no—
455C22×C4—42no—
456C22×C4—42no—
457C22×C4C22×C4×C3112yes—
458C22×C4C2×D4×C3111yescharacteristic
459C22×C4C2×D4×C3111yescharacteristic
460C22×C4C2×D4×C3111yescharacteristic
461C22×C4C2×D4×C3111yescharacteristic
462C22×C4C2×D4×C3111yescharacteristic
463C22×C4#41×C3112yes—
464C22×C4C24×C3111yescharacteristic
465M16—44no—
466C2×C8—21no—
467C2×C8—21no—
468C2×C8—21no—
469C2×C8—21no—
470C2×C8—21no—
471C2×C8—21no—
472C2×C8—21no—
473C2×C8—21no—
474C2×C8—21no—
475C2×C8C22×C4×C3112yes—
476C2×C8C22×C4×C3112yes—
477C2×C8#41×C3112yes—
478C4⋊C4—24no—
479C4⋊C4—24no—
480C4⋊C4—21no—
481C4⋊C4—21no—
482C4⋊C4—21no—
483C4⋊C4—21no—
484C4⋊C4—21no—
485C4⋊C4—21no—
486C4⋊C4—21no—
487C4⋊C4—21no—
488C4⋊C4—21no—
489C4⋊C4—21no—
490C4⋊C4—42no—
491C4⋊C4—42no—
492C4⋊C4—42no—
493C4⋊C4—42no—
494C4⋊C4C22×C4×C3112yes—
495C4⋊C4C22×C4×C3112yes—
496C4⋊C4C22×C4×C3112yes—
497C4⋊C4#41×C3112yes—
498C22⋊C4—24no—
499C22⋊C4—22no—
500C22⋊C4—41no—
501C22⋊C4—42no—
502C22⋊C4—42no—
503C42—21no—
504C42—21no—
505C42—21no—
506C42—21no—
507C42—42no—
508C42—42no—
509C42—42no—
510C42—42no—
511C42—42no—
512C23—21no—
513C23—21no—
514C23—21no—
515C23—21no—
516C23—21no—
517C23—21no—
518C23C4×D4×C3112yes—
519C23C22×D4×C3111yescharacteristic
520Q8—22no—
521Q8—22no—
522Q8—41no—
523Q8—41no—
524C2×C4—21no—
525C2×C4—21no—
526C2×C4—21no—
527C2×C4—21no—
528C2×C4—22no—
529C2×C4—22no—
530C2×C4—22no—
531C2×C4—22no—
532C2×C4—22no—
533C2×C4—22no—
534C2×C4—22no—
535C2×C4—22no—
536C2×C4—21no—
537C2×C4—22no—
538C2×C4—21no—
539C2×C4—21no—
540C2×C4—21no—
541C2×C4—21no—
542C2×C4—21no—
543C2×C4—21no—
544C2×C4—21no—
545C2×C4—21no—
546C2×C4—48no—
547C2×C4—41no—
548C2×C4—41no—
549C2×C4—41no—
550C2×C4—41no—
551C2×C4—41no—
552C2×C4—41no—
553C2×C4—41no—
554C2×C4—41no—
555C2×C4—41no—
556C2×C4—41no—
557C2×C4—41no—
558C2×C4—41no—
559C2×C4—41no—
560C2×C4—41no—
561C2×C4—41no—
562C2×C4—41no—
563C2×C4—41no—
564C2×C4—41no—
565C2×C4—41no—
566C2×C4C4×D4×C3112yes—
567C2×C4C31×AGL(1,ℤ/8)12yes—
568C2×C4C23×C4×C3111yescharacteristic
569C2×C4C2×#41×C3111yescharacteristic
570C2×C4C2×#41×C3111yescharacteristic
571C2×C4C2×#41×C3111yescharacteristic
572C2×C4C31×H(5,𝔽2)11yescharacteristic
573C2×C4C31×2−1+411yescharacteristic
574C8—22no—
575C8—22no—
576C8—22no—
577C8—41no—
578C22—22no—
579C22—22no—
580C22—22no—
581C22—41no—
582C22—41no—
583C22—41no—
584C22—41no—
585C22C2×C4×D4×C3111yescharacteristic
586C22C31×#54611yescharacteristic
587C22C31×#54711yescharacteristic
588C22C2×C31×AGL(1,ℤ/8)11yescharacteristic
589C22C31×#57511yescharacteristic
590C22C31×#57811yescharacteristic
591C22C31×#57811yescharacteristic
592C4—22no—
593C4—22no—
594C4—41no—
595C4—41no—
596C4—42no—
597C4—42no—
598C4—42no—
599C4—42no—
600C4—41no—
601C4—42no—
602C4—81no—
603C4—81no—
604C4—81no—
605C4C4×#41×C3111yescharacteristic
606C4C31×#52011yescharacteristic
607C4C31×#55111yescharacteristic
608C4C31×#55211yescharacteristic
609C2—42no—
610C2C31×#235911yescharacteristic
611C2C4×C31×AGL(1,ℤ/8)11yescharacteristic
612C2C31×#295011yescharacteristic
613C2C31×#330811yescharacteristic
614C2C31×#331511yescharacteristic
615C2C31×#335211yescharacteristic
616C2C31×#335311yescharacteristic
subgroupG/H
center, socleC23×C31C22×D4
commutatorC2×C4C23×C4×C31
Frattini, cosocleC22×C4C24×C31
prime radicalC24×C31C2×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23×C31 ◁ C4×C22⋊C4×C31 ◁ G

Complements

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

NH ≅ G/Ntype
4. C31×#1942C2semidirect
5. C31×#1935C2semidirect
6. C31×#1928C2semidirect
7. C31×#1921C2semidirect
8. C31×#1918C2semidirect
10. C31×#1865C2semidirect
12. C31×#1776C2semidirect
13. C4×C31×#103C2semidirect
22. C31×#484C4semidirect
203. #22925C31direct (N × H)
273. #1942C2×C31semidirect
274. #1935C2×C31semidirect
275. #1928C2×C31semidirect
276. #1921C2×C31semidirect
277. #1918C2×C31semidirect
279. #1865C2×C31semidirect
281. #1776C2×C31semidirect
282. C4×#103C2×C31semidirect
322. #484C4×C31semidirect
434. C31#22925direct (N × H)

Maximal subgroups

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

subgroupindex
C2×C31×#4842
C31×#23622
C31×#23442
C31×#19422
C31×#19352
C31×#19282
C31×#19212
C31×#19182
C31×#18942
C31×#18652
C31×#18542
C31×#17762
C4×C31×#1032
C31×#17532
C31×#17362
#2292531