Finite Group Databasebeta

#34198329

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

FittingC79×#1568 ⋊ C2
SylowC79 ⋊ #11665

Subgroups

subgroupG/H
centerC22C2×#14579081
commutatorC2×C8×C79C22×C4
FrattiniC4×C8C22×D79
FittingC79×#1568C2
socleC22×C79C2×#102
prime radicalC2×#14579183C4
cosocleC4×C8×C79C23
hypercenter#1568D79
hypocenterC79#11665
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ #1568

360 conjugacy classes of subgroups; only the 99 normal subgroups are shown.

normal subgroups only

This group has 360 conjugacy classes of subgroups — too many to draw. Only its 99 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) = 119
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 119 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)(81,84)(85,87)(88,91,93,105)(89,95,98,97)(90,100,102,103)(92,104,108,117)(94,109,110,114)(96,111,113,106)(99,115,116,112)(101,107,118,119);(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)(88,90)(89,94)(91,100)(92,107)(93,102)(95,109)(96,112)(97,114)(98,110)(99,111)(101,117)(103,105)(104,118)(106,116)(108,119)(113,115);(80,81,82,85,83,84,86,87)(88,89)(90,99,102,116)(91,95)(92,106)(93,98)(94,101,110,118)(96,104)(97,105)(100,115,103,112)(107,114,119,109)(108,111)(113,117)

Polycyclic presentation:

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

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 79628);