Finite Group Databasebeta

D5495 #24926928

order10990
automorphismAut(G) order 20573280
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD5495
unambiguous semidirect productC5⋊D1099
unambiguous semidirect productC7⋊D785
unambiguous semidirect productC157⋊D35

Splittings

Fitting, socle, derived, HallC5×C7×C157 ⋊ C2
HallC7×C157 ⋊ D5
HallC5×C157 ⋊ D7
SylowC157 ⋊ D35
HallC5×C7 ⋊ D157
SylowC7 ⋊ D785
SylowC5 ⋊ D1099

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C7×C157C2
LCSG ▷ C5×C7×C157
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 169
transitive degreeμt(G) = 5495

A minimal faithful permutation representation — 2 generators on 169 points:

(1,2,3,4,5)(6,7,8,9,10,11,12)(13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169);(2,5)(3,4)(7,12)(8,11)(9,10)(14,169)(15,168)(16,167)(17,166)(18,165)(19,164)(20,163)(21,162)(22,161)(23,160)(24,159)(25,158)(26,157)(27,156)(28,155)(29,154)(30,153)(31,152)(32,151)(33,150)(34,149)(35,148)(36,147)(37,146)(38,145)(39,144)(40,143)(41,142)(42,141)(43,140)(44,139)(45,138)(46,137)(47,136)(48,135)(49,134)(50,133)(51,132)(52,131)(53,130)(54,129)(55,128)(56,127)(57,126)(58,125)(59,124)(60,123)(61,122)(62,121)(63,120)(64,119)(65,118)(66,117)(67,116)(68,115)(69,114)(70,113)(71,112)(72,111)(73,110)(74,109)(75,108)(76,107)(77,106)(78,105)(79,104)(80,103)(81,102)(82,101)(83,100)(84,99)(85,98)(86,97)(87,96)(88,95)(89,94)(90,93)(91,92)

Polycyclic presentation:

2,5,7,157|b^a=b^4,c^a=c^6,d^a=d^156

Conjugacy classes & character table

2749 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD35×D157, D7×D785, D5×D1099, …
maximal normal subgroup ofD35×D157, D7×D785, D5×D1099, …
maximal quotient ofDic5495, C2×D5495, C3×D5495, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(10990, 8);