Finite Group Databasebeta

#34203194

order20224
automorphism?
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC79×#1387 ⋊ C2
SylowC79 ⋊ #12569

Subgroups

subgroupG/H
centerC22#102×D79
commutatorC8×C79C2×C42
FrattiniC22×C8C22×D79
FittingC79×#1387C2
socleC22×C79C2×#102
prime radicalC23×D79SD16
cosocleC22×C8×C79C23
hypercenter#1387D79
hypocenterC79#12569
LCSG ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C4 ◁ C22×C8 ◁ #1387

570 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

1312 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 84493);