Finite Group Databasebeta

C2×#23758198 #34116481

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

Aliases

direct productC2×#23758198

Splittings

FittingC2×C16×C157 ⋊ C4
SylowC157 ⋊ C2×#365

Subgroups

subgroupG/H
centerC22#19097839
commutatorC8×C157C22×C4
FrattiniC8C22×#10597845
FittingC2×C16×C157C4
socleC22×C157#106
prime radicalC22×D157SD16
cosocleC8×D157C23
hypercenterC2×C16#10597845
hypocenterC157C2×#365
LCSG ▷ C8×C157 ▷ C4×C157 ▷ C2×C157 ▷ C157
UCSC1 ◁ C22 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16

152 conjugacy classes of subgroups; only the 66 normal subgroups are shown.

normal subgroups only

This group has 152 conjugacy classes of subgroups — too many to draw. Only its 66 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 175
transitive degreeμt(G) = 5024

A minimal faithful permutation representation — 3 generators on 175 points:

(1,2,5,10,19,32,49,70,95,124,97,68,92,119,142,114,89,66,87,112,140,147,117,88,63,42,25,12,3,7,14,23,36,53,74,99,128,150,126,93,121,138,110,85,64,45,62,83,108,136,145,113,84,59,38,21,8,16,27,40,57,78,103,131,152,155,148,122,134,106,81,60,43,28,41,58,79,104,132,141,109,80,55,34,17,29,44,61,82,107,135,153,157,156,151,130,102,77,56,39,26,15,24,37,54,75,100,129,137,105,76,51,30,46,65,86,111,139,120,146,154,149,127,98,73,52,35,22,13,6,11,20,33,50,71,96,125,133,101,72,47,67,90,115,143,118,91,116,144,123,94,69,48,31,18,9,4)(160,161,162,165,163,167,168,172,164,166,169,171,170,173,175,174);(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)(95,122,123,135)(99,126,127,146)(103,124,130,144)(107,133,134,140)(111,137,138,136)(115,141,142,132)(119,145,143,129)(121,147,139,125)(128,148,149,153)(131,150,151,154)(152,155,156,157)(161,165,166,171)(162,168)(163,170)(167,174,173,172)(169,175);(158,159)

Conjugacy classes & character table

1280 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20096, 20855);