Finite Group Databasebeta

#34203841

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12716

Subgroups

subgroupG/H
centerC2#23763315
commutatorC22×C4×C79C22×C4
FrattiniC2×#41C22×D79
Fitting, prime radicalC79×#3500C2
socleC2×C79#1781
cosocleC2×#41×C79C23
hypercenter#3500D79
hypocenterC79#12716
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×H(5,𝔽2) ◁ #3500

976 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 2528

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

Polycyclic presentation:

2^8,79|a^2=f,c^2=h,d^2=h,e^2=h,b^a=bd,c^a=ce,d^a=dg,g^a=gh,i^a=i^78,d^b=dh,f^b=fgh,e^c=eh,f^c=fh,f^d=fh

Conjugacy classes & character table

1750 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 85140);