Finite Group Databasebeta

#34209090

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

FittingC79×#2178 ⋊ C2
SylowC79 ⋊ #13692

Subgroups

subgroupG/H
centerC2#23765435
commutator, cosocleC2×C16×C79C23
FrattiniC2×C16C22×D79
FittingC79×#2178C2
socleC2×C79#2206
hypercenter#2178D79
hypocenterC79#13692
LCSG ▷ C2×C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C4×C8 ◁ C4×C16 ◁ #2178

216 conjugacy classes of subgroups; only the 59 normal subgroups are shown.

normal subgroups only

This group has 216 conjugacy classes of subgroups — too many to draw. Only its 59 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) = 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)(80,82)(81,88)(83,93)(84,97)(85,100)(86,101)(87,94)(89,104)(90,107)(91,103)(92,96)(95,102)(98,111)(99,110)(105,109)(106,108);(80,81,86,90,87,91,83,85)(82,88,101,107,94,103,93,100)(84,89,98,105,99,106,95,96)(92,97,104,111,109,110,108,102);(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)(81,85)(82,92)(83,86)(84,96)(88,102)(89,95)(90,91)(93,104)(94,109)(97,100)(98,106)(99,105)(101,108)(103,111)(107,110)

Polycyclic presentation:

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

Conjugacy classes & character table

1753 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90389);