Finite Group Databasebeta

#34179556

order20224
automorphism?
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8291

Subgroups

subgroupG/H
centerC22×C4C2×C22⋊D79
commutatorC2×C4×C79C2×C42
FrattiniC2×C42C22×D79
FittingC8×C4⋊C4×C79C2
socle, prime radicalC23×C79C4×D4
cosocleC2×C42×C79C23
hypercenterC8×C4⋊C4D79
hypocenterC79#8291
LCSG ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22×C4 ◁ C2×C4×C8 ◁ C8×C4⋊C4

410 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 99
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 99 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)(84,86,87,89,88,90,91,85);(80,81,82,83)(93,96)(94,99)(97,98);(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)(84,85,87,86,88,89,91,90)(92,93,94,97,95,98,99,96)

Polycyclic presentation:

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

Conjugacy classes & character table

3196 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 60855);