Finite Group Databasebeta

#34200156

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

FittingC79×#1336 ⋊ C2
SylowC79 ⋊ #12068

Subgroups

subgroupG/H
centerC4#19098672
commutatorC8×C79C22×C8
FrattiniC4×C8C22×D79
FittingC79×#1336C2
socleC2×C79#1580
prime radical#19098993C4
cosocleC4×C8×C79C23
hypercenter#1336D79
hypocenterC79#12068
LCSG ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C2×C8 ◁ C4×C8 ◁ #1336

204 conjugacy classes of subgroups; only the 73 normal subgroups are shown.

normal subgroups only

This group has 204 conjugacy classes of subgroups — too many to draw. Only its 73 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) = 2528

A minimal faithful permutation representation — 3 generators on 111 points:

(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)(80,83,97,103,102,111,84,99,86,101,108,109,85,100,92,98)(81,87,94,104,90,96,95,110,82,93,88,107,91,106,89,105);(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)(80,82)(81,86)(83,93)(84,89)(85,90)(87,101)(88,97)(91,102)(92,95)(94,108)(96,100)(98,110)(99,105)(103,107)(104,109)(106,111);(80,81,84,89,85,91,97,88,86,82,92,95,102,90,108,94)(83,96,99,104,100,87,103,105,101,106,98,107,111,93,109,110)

Polycyclic presentation:

2^8,79|a^2=e,c^2=ef,d^2=f,e^2=g,f^2=h,g^2=h,b^a=bd,c^a=cf,d^a=df,f^a=fh,d^b=dfh,e^b=eh,f^b=fh,d^c=dh,i^c=i^78

Conjugacy classes & character table

1294 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 81455);