Finite Group Databasebeta

#34198316

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1332 ⋊ C2
SylowC79 ⋊ #11662

Subgroups

subgroupG/H
centerC2×C4D8×D79
commutatorC2×C8×C79C22×C4
FrattiniC4×C8C22×D79
FittingC79×#1332C2
socleC22×C79C2×#102
prime radicalC22×D79#102
cosocleC4×C8×C79C23
hypercenter#1332D79
hypocenterC79#11662
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C42 ◁ C4×C8 ◁ #1332

358 conjugacy classes of subgroups; only the 91 normal subgroups are shown.

normal subgroups only

This group has 358 conjugacy classes of subgroups — too many to draw. Only its 91 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

1774 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 79615);