Finite Group Databasebeta

← #27547563

Subgroups — #27547563

Order 13568.

2286 conjugacy classes of subgroups.

The subgroup lattice has 690 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C2×#16811194C211yesmaximal, characteristic
2#20277885C212yesmaximal, complemented
3#20277858C212yesmaximal, complemented
4#20277848C212yesmaximal, complemented
5#20277824C212yesmaximal, complemented
6#20277740C212yesmaximal, complemented
7#20277718C212yesmaximal, complemented
8#20277598C212yesmaximal, complemented
9C22⋊C4×Dic106C212yesmaximal, complemented
10#20277502C214yesmaximal, complemented
11#20277458C214yesmaximal, complemented
12#20277397C212yesmaximal, complemented
13#20277307C211yesmaximal, characteristic
14C4×#13133196C212yesmaximal, complemented
15C53×#2297C211yesmaximal, characteristic
16C23×Dic106C2211yescharacteristic
17#16811194C4116yescomplemented
18C2×#13133215C2212yes—
19C2×#13133204C2212yes—
20C2×#13133198C2212yes—
21C2×#13133198C2212yes—
22C2×#13133196C2212yes—
23C2×#13133196C2212yes—
24C2×C4×Dic106C2212yes—
25C2×C4×Dic106C2212yes—
26C2×#13133176C2211yescharacteristic
27C2×#13133176C2211yescharacteristic
28C22×C4⋊Dic53C2211yescharacteristic
29#16810530C2212yes—
30#16810529C2212yes—
31#16810529C2212yes—
32#16810527C2214yes—
33#16810527C2214yes—
34#16810526C2212yes—
35#16810521C2212yes—
36#16810521C2212yes—
37#16810520C2214yes—
38#16810518C2214yes—
39#16810517C2214yes—
40#16810517C2214yes—
41#16810511C2214yes—
42#16810511C2214yes—
43#16810511C2214yes—
44#16810511C2214yes—
45#16810510C2214yes—
46#16810507C2214yes—
47#16810505C2214yes—
48#16810504C2214yes—
49#16810503C2212yes—
50#16810503C2212yes—
51#16810496C2214yes—
52#16810495C2214yes—
53#16810487C2214yes—
54#16810483C2212yes—
55#16810483C2212yes—
56#16810481C2214yes—
57C4×#11719919C2214yes—
58C4×C4⋊Dic53C2212yes—
59C4×C4⋊Dic53C2212yes—
60#16810474C2214yes—
61C22⋊C4×Dic53C2214yes—
62C22⋊C4×Dic53C2214yes—
63C4×C22⋊Dic53C2214yes—
64#16810468C2214yes—
65C22×#41×C53C2211yescharacteristic
66C2×#117×C53C2211yescharacteristic
67C22×C42×C53C2211yescharacteristic
68C53×#391C2212yes—
69C53×#390C2212yes—
70C53×#386C2211yescharacteristic
71C53×#386C2211yescharacteristic
72C53×#386C2211yescharacteristic
73C53×#386C2211yescharacteristic
74C4×C22⋊C4×C53C2212yes—
75C4×C22⋊C4×C53C2212yes—
76C22×Dic106—42no—
77C22×Dic106—42no—
78C22×Dic106C2×C418yescomplemented
79C22×Dic106C2312yes—
80C22×Dic106C2312yes—
81C23×Dic53C2312yes—
82C23×Dic53C2312yes—
83#13133215C2×C4116yescomplemented
84#13133204C2×C4116yes—
85#13133198C2×C4116yescomplemented
86#13133198C2×C4116yescomplemented
87#13133196C2×C4116yescomplemented
88#13133196C2×C4116yescomplemented
89C4×Dic106—44no—
90C4×Dic106—44no—
91#13133176—42no—
92#13133176C2×C418yescomplemented
93C2×C4⋊Dic53—42no—
94C2×C4⋊Dic53C2312yes—
95C2×C4⋊Dic53C2312yes—
96C2×C4⋊Dic53C2312yes—
97C2×C4⋊Dic53C2312yes—
98C2×#11719919C2314yes—
99C2×#11719919C2314yes—
100C2×#11719919C2314yes—
101C2×#11719919C2314yes—
102C2×#11719919C2314yes—
103C2×#11719919C2314yes—
104C2×C22⋊Dic53C2314yes—
105C2×C22⋊Dic53C2312yes—
106C2×C22⋊Dic53C2314yes—
107C2×C22⋊Dic53C2314yes—
108C2×C22⋊Dic53C2312yes—
109C2×C22⋊Dic53C2314yes—
110C2×C4×Dic53C2314yes—
111C2×C4×Dic53C2314yes—
112C2×C4×Dic53C2312yes—
113C2×C4×Dic53C2314yes—
114C2×C4×Dic53C2314yes—
115C2×C4×Dic53C2312yes—
116#13133124C2314yes—
117#13133124C2314yes—
118#13133124C2314yes—
119#13133124C2314yes—
120#13133124C2314yes—
121#13133124C2314yes—
122#13133124C2314yes—
123#13133124C2314yes—
124#13133124C2314yes—
125#13133124C2314yes—
126C2×#41×C53—42no—
127C2×#41×C53—42no—
128C2×#41×C53C2×C418yes—
129C22×Q8×C53C2311yescharacteristic
130C22×D4×C53C2311yescharacteristic
131C22×D4×C53C2311yescharacteristic
132C22×D4×C53C2311yescharacteristic
133C23×C4×C53C2311yescharacteristic
134C23×C4×C53C2311yescharacteristic
135C23×C4×C53C2311yescharacteristic
136C23×C4×C53C2311yescharacteristic
137C23×C4×C53C2311yescharacteristic
138#117×C53—42no—
139C2×C4⋊C4×C53C2312yes—
140C2×C22⋊C4×C53C2312yes—
141C2×C22⋊C4×C53C2312yes—
142C2×C22⋊C4×C53C2311yescharacteristic
143C2×C22⋊C4×C53C2312yes—
144C2×C22⋊C4×C53C2311yescharacteristic
145C2×C22⋊C4×C53C2312yes—
146C2×C42×C53—42no—
147C2×C42×C53C2312yes—
148C2×C42×C53C2312yes—
149C2×C42×C53C2312yes—
150#95×C53C2312yes—
151#95×C53C2312yes—
152#95×C53C2312yes—
153#95×C53C2312yes—
154C24×C53C2411yescharacteristic
155C24×C53C2411yescharacteristic
156C24×C53C2411yescharacteristic
157#41×C53—416no—
158C2×Q8×C53—41no—
159C2×Q8×C53—41no—
160C2×Q8×C53C22×C414yes—
161C2×D4×C53—41no—
162C2×D4×C53—41no—
163C2×D4×C53—41no—
164C2×D4×C53—41no—
165C2×D4×C53—41no—
166C2×D4×C53—41no—
167C2×D4×C53C22×C414yes—
168C2×D4×C53C22×C414yes—
169C2×D4×C53C22×C414yes—
170C22×C4×C53—22no—
171C22×C4×C53—22no—
172C22×C4×C53—22no—
173C22×C4×C53—22no—
174C22×C4×C53—22no—
175C22×C4×C53—22no—
176C22×C4×C53—24no—
177C22×C4×C53—41no—
178C22×C4×C53—41no—
179C22×C4×C53—42no—
180C22×C4×C53C22×C414yes—
181C22×C4×C53C22×C414yes—
182C22×C4×C53C22×C414yes—
183C22×C4×C53C2412yes—
184C22×C4×C53C2412yes—
185C22×C4×C53C2412yes—
186C22×C4×C53C2411yescharacteristic
187C22×C4×C53C2411yescharacteristic
188C22×C4×C53C2411yescharacteristic
189C22×C4×C53C2412yes—
190C22×C4×C53C2411yescharacteristic
191C22×Dic53—42no—
192C22×Dic53—42no—
193C22×Dic53—42no—
194C22×Dic53—44no—
195C22×Dic53C22×C418yes—
196C22×Dic53C2414yes—
197C22×Dic53C2414yes—
198C22×Dic53C2414yes—
199C22×Dic53C2414yes—
200C2×Dic106—24no—
201C2×Dic106—24no—
202C2×Dic106—416no—
203C2×Dic106—42no—
204C2×Dic106—42no—
205C2×Dic106C22×C418yes—
206C2×Dic106C22×C418yes—
207C4⋊C4×C53—42no—
208C22⋊C4×C53—24no—
209C22⋊C4×C53—24no—
210C22⋊C4×C53—42no—
211C22⋊C4×C53—42no—
212C22⋊C4×C53—41no—
213C22⋊C4×C53—41no—
214C42×C53—24no—
215C42×C53—24no—
216C42×C53—42no—
217C22⋊Dic53—44no—
218C22⋊Dic53—44no—
219C22⋊Dic53—42no—
220C22⋊Dic53C22×C418yes—
221C22⋊Dic53C22×C4116yes—
222C22⋊Dic53C22×C4116yes—
223C4⋊Dic53—24no—
224C4⋊Dic53—24no—
225C4⋊Dic53—42no—
226C4⋊Dic53C22×C418yes—
227#11719919—44no—
228#11719919—44no—
229#11719919—44no—
230#11719919—44no—
231#11719919C22×C4116yes—
232#11719919C22×C4116yes—
233C4×Dic53—28no—
234C4×Dic53—44no—
235C4×Dic53—42no—
236C4×Dic53—44no—
237C4×Dic53—44no—
238C4×Dic53C22×C418yes—
239C23×C53—21no—
240C23×C53—21no—
241C23×C53—21no—
242C23×C53—21no—
243C23×C53—21no—
244C23×C53—21no—
245C23×C53—22no—
246C23×C53—22no—
247C23×C53—22no—
248C23×C53—22no—
249C23×C53—22no—
250C23×C53—22no—
251C23×C53C23×C412yes—
252C23×C53C23×C412yes—
253C23×C53C23×C412yes—
254C23×C53C2511yescharacteristic
255Q8×C53—44no—
256D4×C53—44no—
257D4×C53—44no—
258D4×C53—44no—
259C2×C4×C53—21no—
260C2×C4×C53—21no—
261C2×C4×C53—21no—
262C2×C4×C53—21no—
263C2×C4×C53—21no—
264C2×C4×C53—21no—
265C2×C4×C53—22no—
266C2×C4×C53—22no—
267C2×C4×C53—28no—
268C2×C4×C53—28no—
269C2×C4×C53—28no—
270C2×C4×C53—22no—
271C2×C4×C53—22no—
272C2×C4×C53—22no—
273C2×C4×C53—22no—
274C2×C4×C53—22no—
275C2×C4×C53—22no—
276C2×C4×C53—22no—
277C2×C4×C53—22no—
278C2×C4×C53—22no—
279C2×C4×C53—44no—
280C2×C4×C53—44no—
281C2×C4×C53C23×C412yes—
282C2×C4×C53C23×C412yes—
283C2×C4×C53C23×C412yes—
284C2×C4×C53C23×C412yes—
285C2×C4×C53H(5,𝔽2)12yes—
286C2×C4×C53H(5,𝔽2)12yes—
287C2×C4×C532−1+414yes—
288C2×Dic53—24no—
289C2×Dic53—24no—
290C2×Dic53—24no—
291C2×Dic53—24no—
292C2×Dic53—24no—
293C2×Dic53—24no—
294C2×Dic53—24no—
295C2×Dic53—24no—
296C2×Dic53—24no—
297C2×Dic53—24no—
298C2×Dic53—48no—
299C2×Dic53—84no—
300C2×Dic53C23×C418yes—
301C2×Dic53C23×C418yes—
302Dic106—216no—
303Dic106—48no—
304#34412—531nomaximal, Sylow
305C22×C53—22no—
306C22×C53—22no—
307C22×C53—22no—
308C22×C53—24no—
309C22×C53—24no—
310C22×C53—24no—
311C22×C53—41no—
312C22×C53—41no—
313C22×C53—41no—
314C22×C53—41no—
315C22×C53—41no—
316C22×C53—41no—
317C22×C53—42no—
318C22×C53—42no—
319C22×C53—42no—
320C22×C53C24×C411yescharacteristic
321C22×C53C2×H(5,𝔽2)11yescharacteristic
322C22×C53C2×H(5,𝔽2)11yescharacteristic
323C22×C53C2×2−1+412yes—
324C22×C53#58512yes—
325C4×C53—22no—
326C4×C53—22no—
327C4×C53—22no—
328C4×C53—24no—
329C4×C53—42no—
330C4×C53—42no—
331C4×C53—42no—
332C4×C53#51814yes—
333Dic53—28no—
334Dic53—28no—
335Dic53—44no—
336Dic53—44no—
337C2×#536—531no—
338#2379—532no—
339#2376—532no—
340#2374—532no—
341#2372—532no—
342#2362—532no—
343#2360—532no—
344#2346—532no—
345Q8×C22⋊C4—532no—
346#2335—534no—
347#2331—534no—
348#2323—532no—
349#2311—531no—
350C4×C22⋊Q8—532no—
351#2297D5311yescharacteristic
352C2×C53—42no—
353C2×C53—42no—
354C2×C53—42no—
355C2×C53C2×#51811yescharacteristic
356C2×C53C4×2−1+412yes—
357C2×C53#353811yescharacteristic
358C2×C53#354011yescharacteristic
359C2×C53#354712yes—
360C22×#41C2×D5311yescharacteristic
361C23×Q8—531no—
362#536—5316no—
363C2×C4⋊Q8—532no—
364C2×#124—532no—
365C2×#123—532no—
366C2×#123—532no—
367C2×C22⋊Q8—532no—
368C2×C22⋊Q8—532no—
369C2×C4×Q8—532no—
370C2×C4×Q8—532no—
371C2×#117—531no—
372C2×#117—531no—
373C2×#117C2×D5311yescharacteristic
374C22×C4⋊C4—531no—
375C22×C42C2×D5311yescharacteristic
376#391—532no—
377#391—532no—
378#391—532no—
379#391—534no—
380#391—534no—
381#391C2×D5312yes—
382#390—532no—
383#390C2×D5312yes—
384#389—534no—
385#389—532no—
386#389—532no—
387#389—534no—
388#388—534no—
389#388—534no—
390#388—534no—
391#388—534no—
392#388—534no—
393#388—534no—
394#387—534no—
395#387—534no—
396#387—534no—
397#387—534no—
398#386—532no—
399#386—532no—
400#386C2×D5311yescharacteristic
401#386C2×D5311yescharacteristic
402#386C2×D5311yescharacteristic
403#386C2×D5311yescharacteristic
404#385—534no—
405#385—534no—
406#382—534no—
407#380—532no—
408#380—532no—
409#380—534no—
410C4×C4⋊C4—532no—
411C4×C4⋊C4—534no—
412C4×C4⋊C4—532no—
413C4×C4⋊C4—534no—
414C4×C22⋊C4—534no—
415C4×C22⋊C4—534no—
416C4×C22⋊C4—534no—
417C4×C22⋊C4C2×D5312yes—
418C4×C22⋊C4C2×D5312yes—
419#376—534no—
420C53#3441211yescharacteristic, complemented, Sylow
421C2×#41—42no—
422C2×#41—42no—
423C2×#41C4×D5318yes—
424C22×Q8—538no—
425C22×Q8—532no—
426C22×Q8—532no—
427C22×Q8—2122no—
428C22×Q8—2122no—
429C22×Q8C22×D5311yescharacteristic
430C22×D4C22×D5311yescharacteristic
431C22×D4C22×D5311yescharacteristic
432C22×D4C22×D5311yescharacteristic
433C23×C4—532no—
434C23×C4—532no—
435C23×C4C22×D5311yescharacteristic
436C23×C4C22×D5311yescharacteristic
437C23×C4C22×D5311yescharacteristic
438C23×C4C22×D5311yescharacteristic
439C23×C4C22×D5311yescharacteristic
440C4⋊Q8—5316no—
441#124—5316no—
442#123—5316no—
443#123—5316no—
444C22⋊Q8—5316no—
445C22⋊Q8—5316no—
446C4×Q8—2124no—
447C4×Q8—2124no—
448#117—42no—
449#117—538no—
450#117—2122no—
451C2×C4⋊C4—532no—
452C2×C4⋊C4—534no—
453C2×C4⋊C4—534no—
454C2×C4⋊C4—532no—
455C2×C4⋊C4—532no—
456C2×C4⋊C4—532no—
457C2×C4⋊C4—534no—
458C2×C4⋊C4—534no—
459C2×C4⋊C4—534no—
460C2×C4⋊C4—534no—
461C2×C4⋊C4—2122no—
462C2×C4⋊C4C22×D5312yes—
463C2×C22⋊C4—532no—
464C2×C22⋊C4—534no—
465C2×C22⋊C4—534no—
466C2×C22⋊C4—532no—
467C2×C22⋊C4—534no—
468C2×C22⋊C4—534no—
469C2×C22⋊C4C22×D5312yes—
470C2×C22⋊C4C22×D5312yes—
471C2×C22⋊C4C22×D5311yescharacteristic
472C2×C22⋊C4C22×D5311yescharacteristic
473C2×C22⋊C4C22×D5312yes—
474C2×C22⋊C4C22×D5312yes—
475C2×C42—42no—
476C2×C42—532no—
477C2×C42—534no—
478C2×C42—532no—
479C2×C42—534no—
480C2×C42—534no—
481C2×C42—534no—
482C2×C42C22×D5312yes—
483C2×C42C22×D5312yes—
484C2×C42C22×D5312yes—
485#95—534no—
486#95—534no—
487#95—534no—
488#95—534no—
489#95—534no—
490#95—534no—
491#95—534no—
492#95—534no—
493#95—534no—
494#95—534no—
495#95C22×D5312yes—
496#95C22×D5312yes—
497#95C22×D5312yes—
498#95C22×D5312yes—
499C24C23×D5311yescharacteristic
500C24C23×D5311yescharacteristic
501C24C23×D5311yescharacteristic
502#41—416no—
503C2×Q8—41no—
504C2×Q8—41no—
505C2×Q8—538no—
506C2×Q8—538no—
507C2×Q8—1064no—
508C2×Q8—1064no—
509C2×Q8—2122no—
510C2×Q8—2122no—
511C2×Q8—21216no—
512C2×Q8C2×C4×D5314yes—
513C2×D4—41no—
514C2×D4—41no—
515C2×D4—41no—
516C2×D4—41no—
517C2×D4—41no—
518C2×D4—41no—
519C2×D4C2×C4×D5314yes—
520C2×D4C2×C4×D5314yes—
521C2×D4C2×C4×D5314yes—
522C22×C4—22no—
523C22×C4—22no—
524C22×C4—22no—
525C22×C4—22no—
526C22×C4—22no—
527C22×C4—22no—
528C22×C4—24no—
529C22×C4—41no—
530C22×C4—41no—
531C22×C4—42no—
532C22×C4—534no—
533C22×C4—534no—
534C22×C4—538no—
535C22×C4—534no—
536C22×C4—534no—
537C22×C4—2122no—
538C22×C4—2124no—
539C22×C4—2122no—
540C22×C4—2122no—
541C22×C4C2×C4×D5314yes—
542C22×C4C2×C4×D5314yes—
543C22×C4C2×C4×D5314yes—
544C22×C4C23×D5312yes—
545C22×C4C23×D5312yes—
546C22×C4C23×D5312yes—
547C22×C4C23×D5311yescharacteristic
548C22×C4C23×D5311yescharacteristic
549C22×C4C23×D5311yescharacteristic
550C22×C4C23×D5312yes—
551C22×C4C23×D5311yescharacteristic
552C4⋊C4—42no—
553C4⋊C4—538no—
554C4⋊C4—5316no—
555C4⋊C4—5316no—
556C4⋊C4—1064no—
557C4⋊C4—1064no—
558C4⋊C4—2122no—
559C4⋊C4—2124no—
560C4⋊C4—2124no—
561C4⋊C4—2124no—
562C4⋊C4—2124no—
563C22⋊C4—24no—
564C22⋊C4—24no—
565C22⋊C4—41no—
566C22⋊C4—41no—
567C22⋊C4—42no—
568C22⋊C4—42no—
569C22⋊C4—538no—
570C22⋊C4—5316no—
571C22⋊C4—5316no—
572C22⋊C4—2122no—
573C22⋊C4—2124no—
574C22⋊C4—2124no—
575C42—24no—
576C42—24no—
577C42—42no—
578C42—538no—
579C42—1068no—
580C42—2122no—
581C42—2124no—
582C42—2124no—
583C42—2124no—
584C23—21no—
585C23—21no—
586C23—21no—
587C23—21no—
588C23—21no—
589C23—21no—
590C23—22no—
591C23—22no—
592C23—22no—
593C23—22no—
594C23—22no—
595C23—22no—
596C23C22×C4×D5312yes—
597C23C22×C4×D5312yes—
598C23C22×C4×D5312yes—
599C23C24×D5311yescharacteristic
600Q8—44no—
601Q8—10616no—
602Q8—2128no—
603D4—44no—
604D4—44no—
605D4—44no—
606C2×C4—22no—
607C2×C4—21no—
608C2×C4—21no—
609C2×C4—21no—
610C2×C4—21no—
611C2×C4—21no—
612C2×C4—21no—
613C2×C4—22no—
614C2×C4—28no—
615C2×C4—28no—
616C2×C4—28no—
617C2×C4—22no—
618C2×C4—22no—
619C2×C4—22no—
620C2×C4—22no—
621C2×C4—22no—
622C2×C4—22no—
623C2×C4—22no—
624C2×C4—22no—
625C2×C4—22no—
626C2×C4—44no—
627C2×C4—44no—
628C2×C4—538no—
629C2×C4—538no—
630C2×C4—1064no—
631C2×C4—1064no—
632C2×C4—1064no—
633C2×C4—1064no—
634C2×C4—1064no—
635C2×C4—1064no—
636C2×C4—1064no—
637C2×C4—1064no—
638C2×C4—1064no—
639C2×C4—1064no—
640C2×C4—4244no—
641C2×C4—2128no—
642C2×C4C22×C4×D5312yes—
643C2×C4C22×C4×D5312yes—
644C2×C4C22×C4×D5312yes—
645C2×C4C22×C4×D5312yes—
646C2×C4#1313326212yes—
647C2×C4#1313326212yes—
648C2×C4#1313326414yes—
649C22—22no—
650C22—22no—
651C22—22no—
652C22—24no—
653C22—24no—
654C22—24no—
655C22—42no—
656C22—42no—
657C22—42no—
658C22—41no—
659C22—41no—
660C22—41no—
661C22—41no—
662C22—41no—
663C22—41no—
664C22C23×C4×D5311yescharacteristic
665C22C2×#1313326211yescharacteristic
666C22C2×#1313326211yescharacteristic
667C22C2×#1313326412yes—
668C22#1681145912yes—
669C4—22no—
670C4—22no—
671C4—22no—
672C4—24no—
673C4—42no—
674C4—42no—
675C4—42no—
676C4—1068no—
677C4—1068no—
678C4—2124no—
679C4—2124no—
680C4#1681109614yes—
681C2—42no—
682C2—42no—
683C2—42no—
684C2C2×#1681109611yescharacteristic
685C2C4×#1313326412yes—
686C2#2028896411yescharacteristic
687C2#2028899011yescharacteristic
688C2#2028910412yes—
subgroupG/H
center, FrattiniC23C24×D53
commutatorC22×C53C24×C4
FittingC53×#2297C2
socle, cosocleC23×C53C25
prime radicalC22×#41×C53C22
hypercenter#2297D53
hypocenterC53#34412
LCSG ▷ C22×C53 ▷ C53
UCSC1 ◁ C23 ◁ #2297

Complements

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

NH ≅ G/Ntype
2. #20277885C2semidirect
3. #20277858C2semidirect
4. #20277848C2semidirect
5. #20277824C2semidirect
6. #20277740C2semidirect
7. #20277718C2semidirect
8. #20277598C2semidirect
9. C22⋊C4×Dic106C2semidirect
10. #20277502C2semidirect
11. #20277458C2semidirect
12. #20277397C2semidirect
14. C4×#13133196C2semidirect
17. #16811194C4semidirect
78. C22×Dic106C2×C4semidirect
83. #13133215C2×C4semidirect
85. #13133198C2×C4semidirect
86. #13133198C2×C4semidirect
87. #13133196C2×C4semidirect
88. #13133196C2×C4semidirect
92. #13133176C2×C4semidirect
420. C53#34412semidirect

Maximal subgroups

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

subgroupindex
C2×#168111942
#202778852
#202778582
#202778482
#202778242
#202777402
#202777182
#202775982
C22⋊C4×Dic1062
#202775022
#202774582
#202773972
#202773072
C4×#131331962
C53×#22972
#3441253