Finite Group Databasebeta

← C2×#22598249 #32865215

Subgroups — C2×#22598249 #32865215

Order 18176.

2378 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×#14556087C211yesmaximal, characteristic, complemented
2#22598249C2116yesmaximal, direct product factor
3C2×#17986332C211yesmaximal, characteristic, complemented
4C2×#17986315C211yesmaximal, characteristic, complemented
5C2×#17986337C212yesmaximal, complemented
6C2×#17986320C212yesmaximal, complemented
7C2×#17986327C211yesmaximal, characteristic, complemented
8C2×#17986310C211yesmaximal, characteristic, complemented
9C2×#17986035C212yesmaximal, complemented
10C2×#17985995C212yesmaximal, complemented
11C22×C22⋊(C71⋊C8)C211yesmaximal, characteristic, complemented
12C2×#525×C71C211yesmaximal, characteristic
13C23×C71⋊C8C2212yes—
14C2×#14556087—21no—
15C2×#14556087—21no—
16C2×#14556087—24no—
17C2×#14556087C2212yes—
18C2×#14556087C2212yes—
19C2×#14556087C2218yescomplemented
20C22×C4⋊Dic71C2211yescharacteristic
21C22×C4⋊Dic71C2211yescharacteristic
22C22×C22⋊Dic71—21no—
23C22×C4×Dic71—21no—
24#17986337C22116yescomplemented
25#17986332C2218yescomplemented
26#17986327C2218yescomplemented
27#17986320C22116yescomplemented
28#17986315C2218yescomplemented
29#17986310C2218yescomplemented
30#17986035C22116yescomplemented
31C2×#14556061C2212yescomplemented
32C2×#14556061C2212yescomplemented
33C2×#14556059C2212yescomplemented
34C2×#14556059C2212yescomplemented
35#17985995C22116yescomplemented
36C2×#14556052C2212yescomplemented
37C2×#14556052C2212yescomplemented
38C2×#14556049C2212yescomplemented
39C2×#14556049C2212yescomplemented
40C2×C22⋊(C71⋊C8)C2211yescharacteristic
41C2×C22⋊(C71⋊C8)C2211yescharacteristic
42C2×C22⋊(C71⋊C8)C2212yes—
43C2×C22⋊(C71⋊C8)C2218yescomplemented
44C22×#41×C71C2211yescharacteristic
45C24×C4×C71C2211yescharacteristic
46#525×C71—24no—
47#525×C71C2218yes—
48C2×#123×C71—21no—
49C2×C22⋊Q8×C71C2211yescharacteristic
50C2×C22⋊Q8×C71C2211yescharacteristic
51C2×#121×C71C2211yescharacteristic
52C2×#121×C71C2211yescharacteristic
53C2×#120×C71—21no—
54C2×C4×D4×C71—21no—
55C2×C4×D4×C71—21no—
56C2×#117×C71C2211yescharacteristic
57C23×Dic71—21no—
58C23×Dic71—21no—
59C22×C71⋊C8—28no—
60C22×C71⋊C8C2312yes—
61C22×C71⋊C8C2312yes—
62C22×C71⋊C8C2318yes—
63#14556087—24no—
64#14556087—24no—
65#14556087—28no—
66#14556087—28no—
67#14556087C2318yes—
68#14556087C2318yes—
69C2×C4⋊Dic71—21no—
70C2×C4⋊Dic71—21no—
71C2×C4⋊Dic71—22no—
72C2×C4⋊Dic71—22no—
73C2×C4⋊Dic71C2314yes—
74C2×C4⋊Dic71C2314yes—
75C2×C4⋊Dic71C2312yes—
76C2×C4⋊Dic71C2312yes—
77C2×C22⋊Dic71—22no—
78C2×C22⋊Dic71—22no—
79C2×C22⋊Dic71—28no—
80C2×C4×Dic71—22no—
81C2×C4×Dic71—22no—
82C2×C4×Dic71—28no—
83#14556061C2318yescomplemented
84#14556061C2318yescomplemented
85#14556059C2318yescomplemented
86#14556059C2318yescomplemented
87#14556052C2318yescomplemented
88#14556052C2318yescomplemented
89#14556049C2318yescomplemented
90#14556049C2318yescomplemented
91C22⋊(C71⋊C8)C2314yes—
92C22⋊(C71⋊C8)C2314yes—
93C22⋊(C71⋊C8)C2318yes—
94C25×C71D411yescharacteristic
95C2×#41×C71—22no—
96C2×#41×C71—28no—
97C2×#41×C71C2314yes—
98C22×Q8×C71C2311yescharacteristic
99C22×D4×C71—21no—
100C22×D4×C71—21no—
101C22×D4×C71—21no—
102C22×D4×C71C2311yescharacteristic
103C23×C4×C71—28no—
104C23×C4×C71—21no—
105C23×C4×C71D411yescharacteristic
106C23×C4×C71D411yescharacteristic
107C23×C4×C71D411yescharacteristic
108C23×C4×C71D414yes—
109C23×C4×C71C2311yescharacteristic
110C23×C4×C71C2311yescharacteristic
111C23×C4×C71C2314yes—
112C23×C4×C71C2311yescharacteristic
113#123×C71—28no—
114C22⋊Q8×C71—22no—
115C22⋊Q8×C71—22no—
116C22⋊Q8×C71C2314yes—
117C22⋊Q8×C71C2314yes—
118#121×C71—22no—
119#121×C71—22no—
120#121×C71C2314yes—
121#121×C71C2314yes—
122#120×C71—28no—
123C4×D4×C71—28no—
124C4×D4×C71—28no—
125#117×C71—22no—
126#117×C71C2314yes—
127C2×C4⋊C4×C71—21no—
128C2×C4⋊C4×C71—21no—
129C2×C4⋊C4×C71C2311yescharacteristic
130C2×C4⋊C4×C71C2311yescharacteristic
131C2×C22⋊C4×C71—21no—
132C2×C22⋊C4×C71—21no—
133C2×C22⋊C4×C71—21no—
134C2×C22⋊C4×C71—21no—
135C2×C22⋊C4×C71—21no—
136C2×C42×C71—21no—
137C22×Dic71—24no—
138C22×Dic71—24no—
139C22×Dic71—22no—
140C22×Dic71—22no—
141C22×Dic71—44no—
142C22×Dic71—44no—
143C2×C71⋊C8—24no—
144C2×C71⋊C8—24no—
145C2×C71⋊C8—216no—
146C2×C71⋊C8C2414yes—
147C2×C71⋊C8C2414yes—
148C4⋊Dic71—24no—
149C4⋊Dic71—24no—
150C4⋊Dic71—22no—
151C4⋊Dic71—22no—
152C4⋊Dic71C2414yes—
153C4⋊Dic71C2414yes—
154C22⋊Dic71—28no—
155C22⋊Dic71—28no—
156C4×Dic71—28no—
157C4×Dic71—28no—
158C24×C71—24no—
159C24×C71—24no—
160C24×C71—21no—
161C24×C71—42no—
162C24×C71C2×D411yescharacteristic
163C24×C71C2×D414yes—
164C24×C71C2×D411yescharacteristic
165C24×C71C2×D411yescharacteristic
166#41×C71—216no—
167#41×C71—48no—
168C2×Q8×C71—21no—
169C2×Q8×C71—24no—
170C2×Q8×C71C2412yes—
171C2×D4×C71—24no—
172C2×D4×C71—24no—
173C2×D4×C71—24no—
174C2×D4×C71—21no—
175C2×D4×C71—24no—
176C2×D4×C71—44no—
177C2×D4×C71—44no—
178C2×D4×C71—44no—
179C2×D4×C71C2412yes—
180C22×C4×C71—24no—
181C22×C4×C71—24no—
182C22×C4×C71—24no—
183C22×C4×C71—216no—
184C22×C4×C71—24no—
185C22×C4×C71—24no—
186C22×C4×C71—216no—
187C22×C4×C71—21no—
188C22×C4×C71—21no—
189C22×C4×C71—21no—
190C22×C4×C71—24no—
191C22×C4×C71—44no—
192C22×C4×C71C2×D411yescharacteristic
193C22×C4×C71C2×D411yescharacteristic
194C22×C4×C71C2×D414yes—
195C22×C4×C71C2×D414yes—
196C22×C4×C71C2×D412yes—
197C22×C4×C71C2×D412yes—
198C22×C4×C71C2×D414yes—
199C22×C4×C71C2×D412yes—
200C22×C4×C71C2×D411yescharacteristic
201C22×C4×C71#4118yes—
202C22×C4×C71C2412yes—
203C22×C4×C71C2412yes—
204C22×C4×C71C2411yescharacteristic
205C22×C4×C71C2412yes—
206C4⋊C4×C71—24no—
207C4⋊C4×C71—24no—
208C4⋊C4×C71—21no—
209C4⋊C4×C71—21no—
210C4⋊C4×C71C2412yes—
211C4⋊C4×C71C2412yes—
212C22⋊C4×C71—24no—
213C22⋊C4×C71—24no—
214C22⋊C4×C71—24no—
215C22⋊C4×C71—24no—
216C22⋊C4×C71—24no—
217C42×C71—24no—
218C23×C71—22no—
219C23×C71—22no—
220C23×C71—22no—
221C23×C71—22no—
222C23×C71—28no—
223C23×C71—22no—
224C23×C71—28no—
225C23×C71—22no—
226C23×C71—22no—
227C23×C71—22no—
228C23×C71—44no—
229C23×C71—416no—
230C23×C71—42no—
231C23×C71—42no—
232C23×C71—42no—
233C23×C71#12314yes—
234C23×C71#13514yes—
235C23×C71C22×D412yes—
236C23×C71C22×D412yes—
237C23×C71C22×D412yes—
238C23×C71C22×D411yescharacteristic
239Q8×C71—24no—
240Q8×C71—42no—
241D4×C71—24no—
242D4×C71—48no—
243D4×C71—48no—
244D4×C71—48no—
245D4×C71—42no—
246C2×C4×C71—28no—
247C2×C4×C71—22no—
248C2×C4×C71—22no—
249C2×C4×C71—28no—
250C2×C4×C71—28no—
251C2×C4×C71—24no—
252C2×C4×C71—24no—
253C2×C4×C71—24no—
254C2×C4×C71—24no—
255C2×C4×C71—22no—
256C2×C4×C71—22no—
257C2×C4×C71—22no—
258C2×C4×C71—42no—
259C2×C4×C71—42no—
260C2×C4×C71—42no—
261C2×C4×C71—48no—
262C2×C4×C71#12314yes—
263C2×C4×C71#12318yes—
264C2×C4×C71C22×D412yes—
265C2×C4×C71C22×D412yes—
266C2×C4×C71C22×D412yes—
267C2×C4×C71C22×D411yescharacteristic
268C2×C4×C71C2×#4114yes—
269C2×C4×C71C2×#4118yes—
270C2×C4×C71C2511yescharacteristic
271C2×Dic71—24no—
272C2×Dic71—24no—
273C2×Dic71—48no—
274C2×Dic71—48no—
275C2×Dic71—44no—
276C2×Dic71—44no—
277C71⋊C8—24no—
278C71⋊C8—24no—
279C22×C71—28no—
280C22×C71—28no—
281C22×C71—22no—
282C22×C71—22no—
283C22×C71—22no—
284C22×C71—22no—
285C22×C71—22no—
286C22×C71—22no—
287C22×C71—22no—
288C22×C71—416no—
289C22×C71—44no—
290C22×C71—42no—
291C22×C71—42no—
292C22×C71—42no—
293C22×C71—84no—
294C22×C71C2×#12314yes—
295C22×C71C2×#12312yes—
296C22×C71C2×#13514yes—
297C22×C71C2×#13512yes—
298C22×C71#57512yes—
299C22×C71C23×D411yescharacteristic
300C4×C71—22no—
301C4×C71—22no—
302C4×C71—42no—
303C4×C71—42no—
304C4×C71—42no—
305C4×C71C2×#12314yes—
306C4×C71C2×#12312yes—
307C4×C71C22×#4112yes—
308Dic71—44no—
309Dic71—44no—
310C2×#3091—711nomaximal, Sylow
311C2×C71—24no—
312C2×C71—24no—
313C2×C71—42no—
314C2×C71—82no—
315C2×C71#309114yescomplemented
316C2×C71C22×#12311yescharacteristic
317C2×C71C22×#13511yescharacteristic
318C2×C71C2×#57511yescharacteristic
319C2×#525D7111yescharacteristic
320C22×#117—711no—
321#3091—7116no—
322C2×#484—711no—
323C2×#481—711no—
324C2×#485—712no—
325C2×#482—712no—
326C2×#483—711no—
327C2×#480—711no—
328C2×#427—712no—
329C2×#416—712no—
330C22×C22⋊C8—711no—
331C71C2×#309111yescharacteristic, complemented, Sylow
332C22×#41C2×D7111yescharacteristic
333C24×C4C2×D7111yescharacteristic
334C23×C8—712no—
335#525—24no—
336#525C2×D7118yes—
337C2×#123—21no—
338C2×C22⋊Q8C2×D7111yescharacteristic
339C2×C22⋊Q8C2×D7111yescharacteristic
340C2×#121C2×D7111yescharacteristic
341C2×#121C2×D7111yescharacteristic
342C2×#120—21no—
343C2×C4×D4—21no—
344C2×C4×D4—21no—
345C2×#117—712no—
346C2×#117—718no—
347C2×#117—712no—
348C2×#117—1421no—
349C2×#117—1424no—
350C2×#117—1421no—
351C2×#117C2×D7111yescharacteristic
352C22×C4⋊C4—711no—
353C22×C4⋊C4—711no—
354C22×C22⋊C4—1421no—
355C22×C42—1421no—
356#485—7116no—
357#484—718no—
358#483—718no—
359#482—7116no—
360#481—718no—
361#480—718no—
362#427—7116no—
363C2×#107—712no—
364C2×#107—712no—
365C2×#106—712no—
366C2×#106—712no—
367#416—7116no—
368C2×#103—712no—
369C2×#103—712no—
370C2×#102—712no—
371C2×#102—712no—
372C2×C22⋊C8—711no—
373C2×C22⋊C8—711no—
374C2×C22⋊C8—712no—
375C2×C22⋊C8—718no—
376C25C22⋊D7111yescharacteristic
377C2×#41—22no—
378C2×#41—28no—
379C2×#41C22×D7114yes—
380C22×Q8C22×D7111yescharacteristic
381C22×D4—21no—
382C22×D4—21no—
383C22×D4—21no—
384C22×D4C22×D7111yescharacteristic
385C23×C4—28no—
386C23×C4—21no—
387C23×C4—1421no—
388C23×C4—1421no—
389C23×C4C22⋊D7111yescharacteristic
390C23×C4C22⋊D7114yes—
391C23×C4C22⋊D7111yescharacteristic
392C23×C4C22⋊D7111yescharacteristic
393C23×C4C22×D7111yescharacteristic
394C23×C4C22×D7111yescharacteristic
395C23×C4C22×D7114yes—
396C23×C4C22×D7111yescharacteristic
397C22×C8—712no—
398C22×C8—712no—
399C22×C8—718no—
400C22×C8—1428no—
401#123—28no—
402C22⋊Q8—22no—
403C22⋊Q8—22no—
404C22⋊Q8C22×D7114yes—
405C22⋊Q8C22×D7114yes—
406#121—22no—
407#121—22no—
408#121C22×D7114yes—
409#121C22×D7114yes—
410#120—28no—
411C4×D4—28no—
412C4×D4—28no—
413#117—22no—
414#117—718no—
415#117—718no—
416#117—1428no—
417#117—1424no—
418#117—1428no—
419#117—1424no—
420#117C22×D7114yes—
421C2×C4⋊C4—21no—
422C2×C4⋊C4—21no—
423C2×C4⋊C4—712no—
424C2×C4⋊C4—712no—
425C2×C4⋊C4—714no—
426C2×C4⋊C4—714no—
427C2×C4⋊C4—1421no—
428C2×C4⋊C4—1421no—
429C2×C4⋊C4—1422no—
430C2×C4⋊C4—1422no—
431C2×C4⋊C4C22×D7111yescharacteristic
432C2×C4⋊C4C22×D7111yescharacteristic
433C2×C22⋊C4—21no—
434C2×C22⋊C4—21no—
435C2×C22⋊C4—21no—
436C2×C22⋊C4—21no—
437C2×C22⋊C4—21no—
438C2×C22⋊C4—1422no—
439C2×C22⋊C4—1428no—
440C2×C22⋊C4—1422no—
441C2×C42—21no—
442C2×C42—1422no—
443C2×C42—1428no—
444C2×C42—1422no—
445#107—718no—
446#107—718no—
447#106—718no—
448#106—718no—
449#103—718no—
450#103—718no—
451#102—718no—
452#102—718no—
453C22⋊C8—714no—
454C22⋊C8—714no—
455C22⋊C8—718no—
456C24—24no—
457C24—24no—
458C24—21no—
459C24—42no—
460C24C2×C22⋊D7111yescharacteristic
461C24C2×C22⋊D7114yes—
462C24C2×C22⋊D7111yescharacteristic
463C24C2×C22⋊D7111yescharacteristic
464#41—216no—
465#41—48no—
466C2×Q8—21no—
467C2×Q8—24no—
468C2×Q8C23×D7112yes—
469C2×D4—24no—
470C2×D4—24no—
471C2×D4—24no—
472C2×D4—21no—
473C2×D4—24no—
474C2×D4—44no—
475C2×D4—44no—
476C2×D4—44no—
477C2×D4C23×D7112yes—
478C22×C4—24no—
479C22×C4—24no—
480C22×C4—24no—
481C22×C4—216no—
482C22×C4—24no—
483C22×C4—24no—
484C22×C4—216no—
485C22×C4—21no—
486C22×C4—21no—
487C22×C4—21no—
488C22×C4—24no—
489C22×C4—44no—
490C22×C4—2844no—
491C22×C4—2844no—
492C22×C4—1424no—
493C22×C4—1424no—
494C22×C4—1422no—
495C22×C4—1422no—
496C22×C4C2×C22⋊D7111yescharacteristic
497C22×C4C2×C22⋊D7114yes—
498C22×C4C2×C22⋊D7111yescharacteristic
499C22×C4C2×C22⋊D7112yes—
500C22×C4C2×C22⋊D7114yes—
501C22×C4C2×C22⋊D7112yes—
502C22×C4C2×C22⋊D7114yes—
503C22×C4C2×C22⋊D7112yes—
504C22×C4C2×C22⋊D7111yescharacteristic
505C22×C4#1176586418yes—
506C22×C4C23×D7112yes—
507C22×C4C23×D7112yes—
508C22×C4C23×D7111yescharacteristic
509C22×C4C23×D7112yes—
510C2×C8—714no—
511C2×C8—714no—
512C2×C8—1424no—
513C2×C8—1424no—
514C2×C8—14216no—
515C4⋊C4—24no—
516C4⋊C4—24no—
517C4⋊C4—21no—
518C4⋊C4—21no—
519C4⋊C4—714no—
520C4⋊C4—714no—
521C4⋊C4—1424no—
522C4⋊C4—1424no—
523C4⋊C4—1422no—
524C4⋊C4—1422no—
525C4⋊C4C23×D7112yes—
526C4⋊C4C23×D7112yes—
527C22⋊C4—24no—
528C22⋊C4—24no—
529C22⋊C4—24no—
530C22⋊C4—24no—
531C22⋊C4—24no—
532C22⋊C4—1428no—
533C22⋊C4—1428no—
534C42—24no—
535C42—1428no—
536C42—1428no—
537C23—22no—
538C23—22no—
539C23—22no—
540C23—22no—
541C23—28no—
542C23—22no—
543C23—28no—
544C23—22no—
545C23—22no—
546C23—22no—
547C23—44no—
548C23—416no—
549C23—42no—
550C23—42no—
551C23—42no—
552C23#1455610914yes—
553C23#1455614814yes—
554C23C22×C22⋊D7112yes—
555C23C22×C22⋊D7112yes—
556C23C22×C22⋊D7112yes—
557C23C22×C22⋊D7111yescharacteristic
558Q8—24no—
559Q8—42no—
560D4—24no—
561D4—48no—
562D4—48no—
563D4—48no—
564D4—42no—
565C2×C4—28no—
566C2×C4—22no—
567C2×C4—22no—
568C2×C4—24no—
569C2×C4—24no—
570C2×C4—28no—
571C2×C4—28no—
572C2×C4—24no—
573C2×C4—24no—
574C2×C4—22no—
575C2×C4—22no—
576C2×C4—22no—
577C2×C4—42no—
578C2×C4—42no—
579C2×C4—42no—
580C2×C4—48no—
581C2×C4—2848no—
582C2×C4—2848no—
583C2×C4—2844no—
584C2×C4—2844no—
585C2×C4—1424no—
586C2×C4—1424no—
587C2×C4#1455610914yes—
588C2×C4#1455610918yes—
589C2×C4C22×C22⋊D7112yes—
590C2×C4C22×C22⋊D7112yes—
591C2×C4C22×C22⋊D7112yes—
592C2×C4C22×C22⋊D7111yescharacteristic
593C2×C4C2×#1176586414yes—
594C2×C4C2×#1176586418yes—
595C2×C4C24×D7111yescharacteristic
596C8—1424no—
597C8—1424no—
598C22—22no—
599C22—22no—
600C22—22no—
601C22—22no—
602C22—28no—
603C22—28no—
604C22—22no—
605C22—22no—
606C22—22no—
607C22—416no—
608C22—44no—
609C22—42no—
610C22—42no—
611C22—42no—
612C22—84no—
613C22C2×#1455610914yes—
614C22C2×#1455610912yes—
615C22C2×#1455614814yes—
616C22C2×#1455614812yes—
617C22#1798679712yes—
618C22C23×C22⋊D7111yescharacteristic
619C4—22no—
620C4—22no—
621C4—42no—
622C4—42no—
623C4—42no—
624C4—2844no—
625C4—2844no—
626C4C2×#1455610914yes—
627C4C2×#1455610912yes—
628C4C22×#1176586412yes—
629C2—24no—
630C2—24no—
631C2—42no—
632C2—82no—
633C2#2259824914yesdirect product factor
634C2C22×#1455610911yescharacteristic
635C2C22×#1455614811yescharacteristic
636C2C2×#1798679711yescharacteristic
subgroupG/H
centerC22×C4C2×C22⋊D71
commutator, cosocleC2×C4×C71C25
FrattiniC2×C4C24×D71
Fitting, prime radicalC2×#525×C71C2
socleC23×C71C22×D4
hypercenterC2×#525D71
hypocenterC71C2×#3091
LCSG ▷ C2×C4×C71 ▷ C2×C71 ▷ C71
UCSC1 ◁ C22×C4 ◁ C24×C4 ◁ C2×#525

Complements

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

NH ≅ G/Ntype
1. C22×#14556087C2semidirect
2. #22598249C2direct (N × H)
3. C2×#17986332C2semidirect
4. C2×#17986315C2semidirect
5. C2×#17986337C2semidirect
6. C2×#17986320C2semidirect
7. C2×#17986327C2semidirect
8. C2×#17986310C2semidirect
9. C2×#17986035C2semidirect
10. C2×#17985995C2semidirect
11. C22×C22⋊(C71⋊C8)C2semidirect
19. C2×#14556087C22semidirect
24. #17986337C22semidirect
25. #17986332C22semidirect
26. #17986327C22semidirect
27. #17986320C22semidirect
28. #17986315C22semidirect
29. #17986310C22semidirect
30. #17986035C22semidirect
31. C2×#14556061C22semidirect
32. C2×#14556061C22semidirect
33. C2×#14556059C22semidirect
34. C2×#14556059C22semidirect
35. #17985995C22semidirect
36. C2×#14556052C22semidirect
37. C2×#14556052C22semidirect
38. C2×#14556049C22semidirect
39. C2×#14556049C22semidirect
43. C2×C22⋊(C71⋊C8)C22semidirect
83. #14556061C23semidirect
84. #14556061C23semidirect
85. #14556059C23semidirect
86. #14556059C23semidirect
87. #14556052C23semidirect
88. #14556052C23semidirect
89. #14556049C23semidirect
90. #14556049C23semidirect
315. C2×C71#3091semidirect
331. C71C2×#3091semidirect
633. C2#22598249direct (N × H)

Maximal subgroups

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

subgroupindex
C22×#145560872
#225982492
C2×#179863322
C2×#179863152
C2×#179863372
C2×#179863202
C2×#179863272
C2×#179863102
C2×#179860352
C2×#179859952
C22×C22⋊(C71⋊C8)2
C2×#525×C712
C2×#309171