Finite Group Databasebeta

#34204699

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12904

Subgroups

subgroupG/H
centerC22C2×#14579093
commutatorC2×C8×C79C22×C4
FrattiniC22×C8C22×D79
FittingC4×M32×C79C2
socleC22×C79C2×#106
prime radicalC23×C79C2×SD16
cosocleC22×C8×C79C23
hypercenterC4×M32D79
hypocenterC79#12904
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ C4×M32

318 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 115
transitive degreeμt(G) = 5056

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

Polycyclic presentation:

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

Conjugacy classes & character table

3172 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 85998);