Finite Group Databasebeta

#34196204

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11212

Subgroups

subgroupG/H
centerC2×C4#14579129
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#2285C2
socleC22×C79#386
prime radicalC24×C79C2×D4
cosocleC23×C4×C79C23
hypercenter#2285D79
hypocenterC79#11212
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ #2285

714 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 99
transitive degreeμt(G) = 2528

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)(80,82,83,81)(84,86)(85,91)(87,97)(88,94)(89,95)(90,96)(92,99)(93,98);(80,81,83,82)(84,86)(85,90)(87,97)(88,94)(89,95)(91,92)(93,99)(96,98);(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)(81,82)(84,85,88,92,89,93,87,96)(86,90,94,91,95,99,97,98)

Polycyclic presentation:

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

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 77503);