Finite Group Databasebeta

← C2×#11741383 #14223254

Subgroups — C2×#11741383 #14223254

Order 1792.

3390 conjugacy classes of subgroups.

The subgroup lattice has 674 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×C7×AGL(1,ℤ/8)C211yesmaximal, characteristic, complemented
2C2×#90523C211yesmaximal, characteristic, complemented
3C22×#6514C211yesmaximal, characteristic, complemented
4C22×#6499C211yesmaximal, characteristic, complemented
5C22×#6495C211yesmaximal, characteristic, complemented
6C22×#6472C211yesmaximal, characteristic, complemented
7#11741383C2116yesmaximal, direct product factor
8C2×#89939C212yesmaximal, complemented
9C2×#89940C212yesmaximal, complemented
10C2×#89926C212yesmaximal, complemented
11C2×#89927C212yesmaximal, complemented
12C2×M16×Dic7C211yesmaximal, characteristic, complemented
13C22×C7×#41C2211yescharacteristic
14C23×C7×D4C2211yescharacteristic
15C22×#1157C2211yescharacteristic
16C23×Dic14C2211yescharacteristic
17C2×C7×AGL(1,ℤ/8)—28no—
18C2×C7×AGL(1,ℤ/8)C2218yescomplemented
19C22×C7×SD16C2212yes—
20C22×C7×D8C2212yes—
21C22×C7×M16C2211yescharacteristic
22C22×C22⋊Dic7—22no—
23#90523—24no—
24#90523C2218yescomplemented
25C2×#6514—28no—
26C2×#6514C2218yescomplemented
27C2×#6510C2211yescharacteristic, complemented
28C2×#6507C2211yescharacteristic, complemented
29C22×#1144C2212yescomplemented
30C2×#6503C2211yescharacteristic, complemented
31C2×#6502—22no—
32C2×#6499—22no—
33C2×#6499—24no—
34C2×#6499C2212yes—
35C2×#6499C2212yes—
36C2×#6499C2218yescomplemented
37C2×#6499C2211yescharacteristic, complemented
38C22×#1142C2212yes—
39C22×#1142C2212yescomplemented
40C2×#6495—28no—
41C2×#6495C2218yescomplemented
42C22×#1141C2212yes—
43C2×C4×C22⋊D7—22no—
44C22×C4×Dic7C2211yescharacteristic
45C22×#1136C2211yescharacteristic
46C2×#6472—28no—
47C2×#6472C2218yescomplemented
48C22×Dic28C2212yescomplemented
49C22×#1132C2212yescomplemented
50#89940C22116yescomplemented
51#89939C22116yescomplemented
52#89927C22116yescomplemented
53#89926C22116yescomplemented
54M16×Dic7C2218yescomplemented
55C2×#6389C2212yescomplemented
56C2×C8×Dic7C2212yescomplemented
57C2×#3153—71nomaximal, Sylow
58C25×C7—21no—
59C2×C7×#41—22no—
60C2×C7×#41—24no—
61C2×C7×#41—24no—
62C2×C7×#41C2314yes—
63C22×C7×Q8C2311yescharacteristic
64C22×C7×D4—21no—
65C22×C7×D4—24no—
66C22×C7×D4—24no—
67C22×C7×D4—21no—
68C22×C7×D4—22no—
69C22×C7×D4C2312yes—
70C22×C7×D4C2314yes—
71C22×C7×D4C2311yescharacteristic
72C23×C4×C7—21no—
73C23×C4×C7C2311yescharacteristic
74C22×C22⋊D7—21no—
75C22×C22⋊D7—22no—
76C23×Dic7—21no—
77C23×Dic7D412yes—
78C2×#1157—22no—
79C2×#1157—24no—
80C2×#1157—24no—
81C2×#1157C2314yes—
82C22×D28C2311yescharacteristic
83C22×C4×D7—21no—
84C22×Dic14—24no—
85C22×Dic14—24no—
86C22×Dic14—21no—
87C22×Dic14—22no—
88C22×Dic14C2312yes—
89C22×Dic14C2311yescharacteristic
90C22×Dic14C2314yes—
91C7×AGL(1,ℤ/8)—232no—
92C2×C7×SD16—28no—
93C2×C7×SD16C2318yes—
94C2×C7×D8—28no—
95C2×C7×D8C2318yes—
96C2×C7×M16D418yescomplemented
97C2×C7×M16C2314yes—
98C22×C7×C8C2312yes—
99C2×C22⋊Dic7—22no—
100C2×C22⋊Dic7—24no—
101C2×C22⋊Dic7—24no—
102C2×C22⋊Dic7—216no—
103#6514—232no—
104#6510—22no—
105#6510C2314yescomplemented
106#6507—22no—
107#6507C2314yescomplemented
108C2×#1144—28no—
109C2×#1144C2318yescomplemented
110#6503—22no—
111#6503C2314yescomplemented
112#6502—216no—
113#6499—24no—
114#6499—24no—
115#6499—216no—
116#6499—22no—
117#6499C2318yes—
118#6499C2318yes—
119#6499C2314yescomplemented
120C2×#1142—28no—
121C2×#1142—28no—
122C2×#1142C2318yes—
123C2×#1142C2318yescomplemented
124#6495—232no—
125C2×#1141—28no—
126C2×#1141C2318yes—
127C4×C22⋊D7—216no—
128C2×(C2×D7)⋊C4—22no—
129C2×Dic7⋊C4—22no—
130C2×C4×Dic7D412yes—
131C2×C4×Dic7D414yes—
132C2×C4×Dic7C2311yescharacteristic
133C2×C4×Dic7C2311yescharacteristic
134C2×C4×Dic7C2314yes—
135C2×#1136D418yescomplemented
136C2×#1136C2314yes—
137C22×C7⋊C8C2312yes—
138#6472—232no—
139C2×Dic28—28no—
140C2×Dic28C2318yescomplemented
141C2×#1132—28no—
142C2×#1132C2318yescomplemented
143#6389C2318yescomplemented
144C8×Dic7C2318yescomplemented
145C22×#137—71no—
146C22×#137—71no—
147C22×AGL(1,ℤ/8)—71no—
148C22×AGL(1,ℤ/8)D711yescharacteristic, complemented
149C2×#532—71no—
150C22×#124—71no—
151#3153—716no—
152C2×#497—72no—
153C2×#496—72no—
154C2×#495—72no—
155C2×#495—72no—
156C2×C4×M16—71no—
157C24×C7—24no—
158C24×C7—22no—
159C24×C7—21no—
160C24×C7—48no—
161C24×C7—44no—
162C24×C7C2×D411yescharacteristic
163C23×D7—21no—
164C7×#41—28no—
165C7×#41—28no—
166C7×#41—48no—
167C2×C7×Q8—21no—
168C2×C7×Q8—22no—
169C2×C7×Q8—22no—
170C2×C7×Q8C2412yes—
171C2×C7×D4—24no—
172C2×C7×D4—24no—
173C2×C7×D4—28no—
174C2×C7×D4—22no—
175C2×C7×D4—22no—
176C2×C7×D4—24no—
177C2×C7×D4—28no—
178C2×C7×D4—22no—
179C2×C7×D4—24no—
180C2×C7×D4—21no—
181C2×C7×D4—44no—
182C2×C7×D4—44no—
183C2×C7×D4—48no—
184C2×C7×D4C2414yes—
185C2×C7×D4C2412yes—
186C22×C4×C7—21no—
187C22×C4×C7—24no—
188C22×C4×C7—44no—
189C22×C4×C7C2×D411yescharacteristic
190C22×C4×C7C2×D412yes—
191C22×C4×C7C2×D414yes—
192C22×C4×C7C2×D414yes—
193C22×C4×C7C2411yescharacteristic
194C22×C4×C7C2412yes—
195C2×C22⋊D7—24no—
196C2×C22⋊D7—28no—
197C2×C22⋊D7—48no—
198C2×C22⋊D7—44no—
199C22×Dic7—21no—
200C22×Dic7—24no—
201C22×Dic7—22no—
202C22×Dic7—44no—
203C22×Dic7—44no—
204C22×Dic7C2×D412yes—
205C22×Dic7C2×D412yes—
206C22×Dic7C2×D418yes—
207#1157—28no—
208#1157—28no—
209#1157—48no—
210C2×D28—22no—
211C2×D28—22no—
212C2×D28—21no—
213C2×D28C2412yes—
214C2×C4×D7—24no—
215C2×C4×D7—44no—
216C2×Dic14—24no—
217C2×Dic14—22no—
218C2×Dic14—28no—
219C2×Dic14—22no—
220C2×Dic14—24no—
221C2×Dic14—28no—
222C2×Dic14—22no—
223C2×Dic14—24no—
224C2×Dic14—21no—
225C2×Dic14—44no—
226C2×Dic14—48no—
227C2×Dic14C2414yes—
228C2×Dic14C2412yes—
229C7×SD16—216no—
230C7×D8—216no—
231C7×M16C2×D4116yescomplemented
232C2×C7×C8C2×D418yes—
233C2×C7×C8C2414yes—
234C22⋊Dic7—28no—
235C22⋊Dic7—216no—
236C22⋊Dic7—216no—
237#1144—216no—
238#1142—216no—
239#1142—216no—
240#1141—216no—
241(C2×D7)⋊C4—28no—
242Dic7⋊C4—28no—
243C4×Dic7C2×D418yes—
244C4×Dic7C2×D412yes—
245C4×Dic7C2×D412yes—
246C4×Dic7C2412yes—
247C4×Dic7C2412yes—
248#1136C2×D4116yescomplemented
249C2×C7⋊C8C2×D418yes—
250C2×C7⋊C8C2414yes—
251Dic28—216no—
252#1132—216no—
253C22×#41—71no—
254C22×#41C2×D711yescharacteristic
255C23×Q8—71no—
256C23×D4C2×D711yescharacteristic
257C2×#137—78no—
258C2×#137—78no—
259C2×#137—148no—
260C2×#137—148no—
261C2×AGL(1,ℤ/8)—28no—
262C2×AGL(1,ℤ/8)—78no—
263C2×AGL(1,ℤ/8)—148no—
264C2×AGL(1,ℤ/8)C2×D718yescomplemented
265C22×Q16—72no—
266C22×Q16—72no—
267C22×SD16—72no—
268C22×SD16—72no—
269C22×SD16—72no—
270C22×SD16C2×D712yes—
271C22×D8—72no—
272C22×D8C2×D712yes—
273C22×M16—71no—
274C22×M16C2×D711yescharacteristic
275#532—78no—
276#532—144no—
277C2×C4⋊Q8—71no—
278C2×#127—71no—
279C2×#124—71no—
280C2×#124—72no—
281C2×#124—71no—
282C2×#124—72no—
283C2×#124—78no—
284C2×#124—142no—
285C2×#124—144no—
286C2×#121—142no—
287C2×C4×D4—142no—
288C22×C22⋊C4—142no—
289C22×C42—71no—
290#497—716no—
291#496—716no—
292#495—716no—
293#495—716no—
294C4×M16—78no—
295C2×#97—72no—
296C2×C4×C8—72no—
297C23×C7—24no—
298C23×C7—24no—
299C23×C7—22no—
300C23×C7—416no—
301C23×C7—42no—
302C23×C7—48no—
303C23×C7—44no—
304C23×C7—44no—
305C23×C7—48no—
306C23×C7—816no—
307C23×C7#12714yes—
308C23×C7C22×D412yes—
309C23×C7C22×D411yescharacteristic
310C22×D7—22no—
311C22×D7—42no—
312C22×D7—44no—
313C7×Q8—22no—
314C7×Q8—22no—
315C7×Q8—42no—
316C7×D4—24no—
317C7×D4—22no—
318C7×D4—22no—
319C7×D4—24no—
320C7×D4—48no—
321C7×D4—44no—
322C7×D4—48no—
323C7×D4—42no—
324C2×C4×C7—22no—
325C2×C4×C7—42no—
326C2×C4×C7—48no—
327C2×C4×C7#12714yes—
328C2×C4×C7#12718yes—
329C2×C4×C7C22×D411yescharacteristic
330C2×C4×C7C22×D412yes—
331C2×C4×C7C22×D412yes—
332C2×C4×C7C22×D414yes—
333C2×C4×C7C22×D412yes—
334C2×C4×C7C22×D414yes—
335C2×C4×C7C2511yescharacteristic
336C22⋊D7—416no—
337C22⋊D7—48no—
338C2×Dic7—24no—
339C2×Dic7—24no—
340C2×Dic7—22no—
341C2×Dic7—24no—
342C2×Dic7—48no—
343C2×Dic7—48no—
344C2×Dic7—44no—
345C2×Dic7—42no—
346C2×Dic7C22×D414yes—
347C2×Dic7C22×D414yes—
348D28—22no—
349D28—22no—
350D28—42no—
351C4×D7—48no—
352Dic14—24no—
353Dic14—22no—
354Dic14—22no—
355Dic14—24no—
356Dic14—44no—
357Dic14—48no—
358Dic14—42no—
359C7×C8C22×D418yes—
360C7⋊C8C22×D418yes—
361C25—21no—
362C2×#41—22no—
363C2×#41—24no—
364C2×#41—24no—
365C2×#41—74no—
366C2×#41—142no—
367C2×#41—144no—
368C2×#41—144no—
369C2×#41C22×D714yes—
370C22×Q8—72no—
371C22×Q8—74no—
372C22×Q8—71no—
373C22×Q8—142no—
374C22×Q8—141no—
375C22×Q8—144no—
376C22×Q8—144no—
377C22×Q8C22×D711yescharacteristic
378C22×D4—21no—
379C22×D4—24no—
380C22×D4—22no—
381C22×D4—21no—
382C22×D4—24no—
383C22×D4—71no—
384C22×D4—142no—
385C22×D4—141no—
386C22×D4C22×D712yes—
387C22×D4C22×D714yes—
388C22×D4C22×D711yescharacteristic
389C23×C4—21no—
390C23×C4—72no—
391C23×C4—141no—
392C23×C4—141no—
393C23×C4C22×D711yescharacteristic
394#137—1432no—
395#137—1432no—
396AGL(1,ℤ/8)—232no—
397AGL(1,ℤ/8)—1432no—
398C2×Q16—78no—
399C2×Q16—78no—
400C2×Q16—148no—
401C2×Q16—148no—
402C2×SD16—28no—
403C2×SD16—78no—
404C2×SD16—78no—
405C2×SD16—78no—
406C2×SD16—148no—
407C2×SD16—148no—
408C2×SD16—148no—
409C2×SD16C22×D718yes—
410C2×D8—28no—
411C2×D8—78no—
412C2×D8—148no—
413C2×D8C22×D718yes—
414C2×M16—78no—
415C2×M16—74no—
416C2×M16C22⋊D718yescomplemented
417C2×M16C22×D714yes—
418C22×C8—72no—
419C22×C8C22×D712yes—
420C4⋊Q8—74no—
421C4⋊Q8—142no—
422#127—74no—
423#127—142no—
424#124—74no—
425#124—78no—
426#124—78no—
427#124—74no—
428#124—1416no—
429#124—144no—
430#124—144no—
431#124—142no—
432#124—142no—
433#121—1416no—
434C4×D4—1416no—
435C2×C4⋊C4—142no—
436C2×C22⋊C4—142no—
437C2×C22⋊C4—144no—
438C2×C22⋊C4—144no—
439C2×C22⋊C4—1416no—
440C2×C22⋊C4—142no—
441C2×C42—72no—
442C2×C42—74no—
443C2×C42—71no—
444C2×C42—71no—
445C2×C42—74no—
446#97—78no—
447C4×C8—78no—
448C22×C7—28no—
449C22×C7—24no—
450C22×C7—42no—
451C22×C7—44no—
452C22×C7—44no—
453C22×C7—48no—
454C22×C7—816no—
455C22×C7—84no—
456C22×C7—88no—
457C22×C7C2×#12714yes—
458C22×C7C2×#12712yes—
459C22×C7#57514yes—
460C22×C7C23×D411yescharacteristic
461C2×D7—42no—
462C2×D7—44no—
463C2×D7—84no—
464C4×C7—42no—
465C4×C7C2×#12712yes—
466C4×C7C2×#12714yes—
467C4×C7C23×D411yescharacteristic
468C4×C7C23×D411yescharacteristic
469Dic7—24no—
470Dic7—24no—
471Dic7—44no—
472Dic7—42no—
473C24—24no—
474C24—22no—
475C24—21no—
476C24—48no—
477C24—44no—
478C24—141no—
479C24D4×D711yescharacteristic
480#41—28no—
481#41—28no—
482#41—48no—
483#41—148no—
484#41—148no—
485#41—288no—
486C2×Q8—21no—
487C2×Q8—22no—
488C2×Q8—22no—
489C2×Q8—74no—
490C2×Q8—72no—
491C2×Q8—144no—
492C2×Q8—142no—
493C2×Q8—141no—
494C2×Q8—142no—
495C2×Q8—144no—
496C2×Q8—148no—
497C2×Q8—144no—
498C2×Q8—142no—
499C2×Q8—148no—
500C2×Q8—284no—
501C2×Q8—288no—
502C2×Q8C23×D712yes—
503C2×D4—24no—
504C2×D4—24no—
505C2×D4—22no—
506C2×D4—28no—
507C2×D4—24no—
508C2×D4—22no—
509C2×D4—21no—
510C2×D4—22no—
511C2×D4—24no—
512C2×D4—28no—
513C2×D4—44no—
514C2×D4—44no—
515C2×D4—48no—
516C2×D4—72no—
517C2×D4—148no—
518C2×D4—144no—
519C2×D4—142no—
520C2×D4—141no—
521C2×D4—142no—
522C2×D4—288no—
523C2×D4—284no—
524C2×D4C23×D714yes—
525C2×D4C23×D712yes—
526C22×C4—21no—
527C22×C4—24no—
528C22×C4—44no—
529C22×C4—72no—
530C22×C4—72no—
531C22×C4—78no—
532C22×C4—144no—
533C22×C4—142no—
534C22×C4—141no—
535C22×C4—144no—
536C22×C4—284no—
537C22×C4—284no—
538C22×C4—284no—
539C22×C4D4×D712yes—
540C22×C4D4×D711yescharacteristic
541C22×C4D4×D714yes—
542C22×C4C2×C22⋊D714yes—
543C22×C4C23×D712yes—
544C22×C4C23×D711yescharacteristic
545Q16—1416no—
546Q16—1416no—
547SD16—216no—
548SD16—1416no—
549SD16—1416no—
550SD16—1416no—
551D8—216no—
552D8—1416no—
553M16—716no—
554M16C2×C22⋊D7116yescomplemented
555C2×C8—78no—
556C2×C8—74no—
557C2×C8C2×C22⋊D718yes—
558C2×C8C23×D714yes—
559C4⋊C4—148no—
560C22⋊C4—148no—
561C22⋊C4—1416no—
562C22⋊C4—1416no—
563C22⋊C4—148no—
564C42—78no—
565C42—72no—
566C42—72no—
567C42—72no—
568C42—72no—
569C2×C7—24no—
570C2×C7—82no—
571C2×C7—84no—
572C2×C7#315314yescomplemented
573C2×C7C22×#12711yescharacteristic
574C2×C7C2×#57512yes—
575D7—82no—
576C23—24no—
577C23—24no—
578C23—22no—
579C23—416no—
580C23—44no—
581C23—48no—
582C23—42no—
583C23—48no—
584C23—44no—
585C23—816no—
586C23—142no—
587C23—284no—
588C23—282no—
589C23#650314yes—
590C23C2×D4×D712yes—
591C23C2×D4×D711yescharacteristic
592Q8—22no—
593Q8—22no—
594Q8—42no—
595Q8—142no—
596Q8—144no—
597Q8—144no—
598Q8—142no—
599Q8—288no—
600Q8—284no—
601Q8—282no—
602D4—24no—
603D4—22no—
604D4—22no—
605D4—24no—
606D4—48no—
607D4—48no—
608D4—44no—
609D4—42no—
610D4—142no—
611D4—142no—
612D4—2816no—
613D4—288no—
614D4—282no—
615C2×C4—22no—
616C2×C4—42no—
617C2×C4—48no—
618C2×C4—74no—
619C2×C4—74no—
620C2×C4—144no—
621C2×C4—144no—
622C2×C4—144no—
623C2×C4—142no—
624C2×C4—288no—
625C2×C4—282no—
626C2×C4—288no—
627C2×C4—284no—
628C2×C4—288no—
629C2×C4#650314yes—
630C2×C4#650318yes—
631C2×C4C2×D4×D712yes—
632C2×C4C2×D4×D711yescharacteristic
633C2×C4C2×D4×D712yes—
634C2×C4C2×D4×D714yes—
635C2×C4C22×C22⋊D712yes—
636C2×C4C22×C22⋊D714yes—
637C2×C4C24×D711yescharacteristic
638C8—78no—
639C8C22×C22⋊D718yes—
640C7C2×#315311yescharacteristic, complemented, Sylow
641C22—24no—
642C22—28no—
643C22—44no—
644C22—48no—
645C22—42no—
646C22—44no—
647C22—816no—
648C22—88no—
649C22—84no—
650C22—284no—
651C22—282no—
652C22—564no—
653C22#9046414yes—
654C22C2×#650314yes—
655C22C2×#650312yes—
656C22C22×D4×D711yescharacteristic
657C4—42no—
658C4—144no—
659C4—144no—
660C4—282no—
661C4—284no—
662C4C2×#650314yes—
663C4C2×#650312yes—
664C4C22×D4×D711yescharacteristic
665C4C23×C22⋊D711yescharacteristic
666C2—24no—
667C2—84no—
668C2—82no—
669C2—562no—
670C2#1174138314yesdirect product factor
671C2C2×#9046412yes—
672C2C22×#650311yescharacteristic
subgroupG/H
centerC23C2×D4×D7
commutator, cosocleC2×C4×C7C25
FrattiniC2×C4C24×D7
FittingC22×C7×AGL(1,ℤ/8)C2
socleC23×C7C22×D4
hypercenterC22×AGL(1,ℤ/8)D7
hypocenterC7C2×#3153
LCSG ▷ C2×C4×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C23 ◁ C23×C4 ◁ C22×AGL(1,ℤ/8)

Complements

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

NH ≅ G/Ntype
1. C22×C7×AGL(1,ℤ/8)C2semidirect
2. C2×#90523C2semidirect
3. C22×#6514C2semidirect
4. C22×#6499C2semidirect
5. C22×#6495C2semidirect
6. C22×#6472C2semidirect
7. #11741383C2direct (N × H)
8. C2×#89939C2semidirect
9. C2×#89940C2semidirect
10. C2×#89926C2semidirect
11. C2×#89927C2semidirect
12. C2×M16×Dic7C2semidirect
18. C2×C7×AGL(1,ℤ/8)C22semidirect
24. #90523C22semidirect
26. C2×#6514C22semidirect
27. C2×#6510C22semidirect
28. C2×#6507C22semidirect
29. C22×#1144C22semidirect
30. C2×#6503C22semidirect
36. C2×#6499C22semidirect
37. C2×#6499C22semidirect
39. C22×#1142C22semidirect
41. C2×#6495C22semidirect
47. C2×#6472C22semidirect
48. C22×Dic28C22semidirect
49. C22×#1132C22semidirect
50. #89940C22semidirect
51. #89939C22semidirect
52. #89927C22semidirect
53. #89926C22semidirect
54. M16×Dic7C22semidirect
55. C2×#6389C22semidirect
56. C2×C8×Dic7C22semidirect
96. C2×C7×M16D4semidirect
105. #6510C23semidirect
107. #6507C23semidirect
109. C2×#1144C23semidirect
111. #6503C23semidirect
119. #6499C23semidirect
123. C2×#1142C23semidirect
135. C2×#1136D4semidirect
140. C2×Dic28C23semidirect
142. C2×#1132C23semidirect
143. #6389C23semidirect
144. C8×Dic7C23semidirect
148. C22×AGL(1,ℤ/8)D7semidirect
231. C7×M16C2×D4semidirect
248. #1136C2×D4semidirect
264. C2×AGL(1,ℤ/8)C2×D7semidirect
416. C2×M16C22⋊D7semidirect
554. M16C2×C22⋊D7semidirect
572. C2×C7#3153semidirect
640. C7C2×#3153semidirect
670. C2#11741383direct (N × H)

Maximal subgroups

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

subgroupindex
C22×C7×AGL(1,ℤ/8)2
C2×#905232
C22×#65142
C22×#64992
C22×#64952
C22×#64722
#117413832
C2×#899392
C2×#899402
C2×#899262
C2×#899272
C2×M16×Dic72
C2×#31537