Finite Group Databasebeta

#34202575

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12448

Subgroups

subgroupG/H
centerC22#19098758
commutator, cosocleC4×C8×C79C23
FrattiniC4×C8C22×D79
FittingC8×Q16×C79C2
socle, prime radicalC22×C79#459
hypercenterC8×Q16D79
hypocenterC79#12448
LCSG ▷ C4×C8×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C82 ◁ C8×Q16

218 conjugacy classes of subgroups; only the 75 normal subgroups are shown.

normal subgroups only

This group has 218 conjugacy classes of subgroups — too many to draw. Only its 75 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) = 20224

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

Polycyclic presentation:

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

Conjugacy classes & character table

2227 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 83874);