Finite Group Databasebeta

#34116706

order20096
automorphism?
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Splittings

Fitting#131×C157 ⋊ C4
SylowC157 ⋊ #2875

Subgroups

subgroupG/H
center, FrattiniC4C23×#10597845
commutator, socleC2×C157C22×C42
Fitting#131×C157C4
prime radical#41×D157C22
cosocleC4×D157C24
hypercenter#131#10597845
hypocenterC157#2875
LCSG ▷ C2×C157 ▷ C157
UCSC1 ◁ C4 ◁ #131

556 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 173
transitive degreeμt(G) = 2512

A minimal faithful permutation representation — 4 generators on 173 points:

(1,2,5,10,19,32,49,70,95,124,118,91,116,140,134,101,72,47,67,90,115,127,98,73,52,35,22,13,6,11,20,33,50,71,96,125,148,151,144,120,142,137,105,76,51,30,46,65,86,111,131,102,77,56,39,26,15,24,37,54,75,100,129,149,155,157,153,146,139,109,80,55,34,17,29,44,61,82,107,135,106,81,60,43,28,41,58,79,104,133,122,147,154,156,150,141,113,84,59,38,21,8,16,27,40,57,78,103,132,110,85,64,45,62,83,108,136,126,93,121,145,152,143,117,88,63,42,25,12,3,7,14,23,36,53,74,99,128,114,89,66,87,112,138,130,97,68,92,119,123,94,69,48,31,18,9,4)(160,166)(164,169)(167,172)(171,173);(158,160)(159,164)(161,167)(162,166)(163,169)(165,171)(168,172)(170,173);(2,3,4,6)(5,8,9,15)(7,12,13,11)(10,17,18,28)(14,21,22,24)(16,25,26,20)(19,30,31,45)(23,34,35,41)(27,38,39,37)(29,42,43,33)(32,47,48,66)(36,51,52,62)(40,55,56,58)(44,59,60,54)(46,63,64,50)(49,68,69,91)(53,72,73,87)(57,76,77,83)(61,80,81,79)(65,84,85,75)(67,88,89,71)(70,93,94,120)(74,97,98,116)(78,101,102,112)(82,105,106,108)(86,109,110,104)(90,113,114,100)(92,117,118,96)(95,122,123,146)(99,126,127,142)(103,130,131,140)(107,134,135,138)(111,137,132,136)(115,139,128,133)(119,141,124,129)(121,143,144,125)(145,150,151,149)(147,152,153,148)(154,156,157,155)(159,163)(164,169)(165,170)(171,173);(158,159,161,165,162,163,168,170)(160,164,167,171,166,169,172,173)

Polycyclic presentation:

2^7,157|a^2=e,b^2=f,e^2=g,b^a=bg,h^b=h^129,d^c=dg,h^f=h^156

Conjugacy classes & character table

848 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20096, 21080);