Finite Group Databasebeta

#34175002

order20224
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7097

Subgroups

subgroupG/H
centerC22#19098307
commutatorC4×C8×C79C2×C4
FrattiniC82C2×D79
FittingC79×#1713C2
socle, prime radicalC22×C79#331
cosocleC82×C79C22
hypercenter#1713D79
hypocenterC79#7097
LCSG ▷ C4×C8×C79 ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C82 ◁ #1713

142 conjugacy classes of subgroups; only the 59 normal subgroups are shown.

normal subgroups only

This group has 142 conjugacy classes of subgroups — too many to draw. Only its 59 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) = 111
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 2 generators on 111 points:

(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(81,86)(82,91)(83,93)(85,92)(87,89)(88,94)(90,95)(96,97,100,103)(98,105,107,111)(99,108,106,102)(101,109,110,104);(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)(80,81,83,86,85,89,82,90,84,88,91,94,92,95,93,87)(97,101)(98,104)(99,106)(102,111)(103,110)(105,108)(107,109)

Polycyclic presentation:

2^8,79|a^2=d,b^2=g,c^2=fh,d^2=efh,e^2=g,f^2=h,b^a=bc,c^a=ce,e^a=eg,f^a=fg,i^a=i^78,c^b=cf,d^b=defg,e^b=eg,f^b=fh

Conjugacy classes & character table

1525 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56301);