Finite Group Databasebeta

#34203233

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12579

Subgroups

subgroupG/H
centerC4C2×#14579076
commutatorC23×C79C2×C42
FrattiniC2×#41C22×D79
FittingC79×#2879C2
socleC2×C79C2×#342
prime radicalC22×#41×C79C22
cosocleC2×#41×C79C23
hypercenter#2879D79
hypocenterC79#12579
LCSG ▷ C23×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C22×C4 ◁ C22×#41 ◁ #2879

736 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)(82,91)(86,90)(92,97)(93,105)(98,102)(99,104)(106,108)(110,111);(80,82,84,93,85,91,96,105)(81,86,89,99,87,90,101,104)(83,92,95,106,94,97,107,108)(88,102,103,111,100,98,109,110);(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)(80,81,83,88,85,87,94,100)(82,90,92,102,91,86,97,98)(84,89,95,103,96,101,107,109)(93,104,106,111,105,99,108,110)

Polycyclic presentation:

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

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, 84532);