Finite Group Databasebeta

#34200656

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

FittingC79×#2693 ⋊ C2
SylowC79 ⋊ #12149

Subgroups

subgroupG/H
centerC22#19098750
commutator, cosocleC2×C22⋊C4×C79C23
FrattiniC2×C22⋊C4C22×D79
FittingC79×#2693C2
socleC22×C79B(4,𝔽2)
prime radical#23762317C2
hypercenter#2693D79
hypocenterC79#12149
LCSG ▷ C2×C22⋊C4×C79 ▷ C23×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23 ◁ C2×C22⋊C4 ◁ #2693

498 conjugacy classes of subgroups; only the 63 normal subgroups are shown.

normal subgroups only

This group has 498 conjugacy classes of subgroups — too many to draw. Only its 63 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 103
transitive degreeμt(G) = 2528

A minimal faithful permutation representation — 3 generators on 103 points:

(9,12)(10,16,18,17)(11,20)(13,14)(15,19,23,24)(21,22)(25,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,103,101,99,97,95,93,91,89,87,85,83,81,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27);(2,5)(3,8)(6,7)(9,11)(10,15)(12,20)(13,22)(14,21)(16,19)(17,24)(18,23);(1,2)(3,5)(4,7)(6,8)(9,10)(11,19)(12,17)(13,16)(14,18)(15,20)(21,24)(22,23)(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)(82,83)(84,85)(86,87)(88,89)(90,91)(92,93)(94,95)(96,97)(98,99)(100,101)(102,103)

Polycyclic presentation:

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

Conjugacy classes & character table

1276 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 81955);