Finite Group Databasebeta

#34208285

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13519

Subgroups

subgroupG/H
centerC4#19098814
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#1945C2
socleC2×C79#2087
prime radicalC23×C79#135
hypercenter#1945D79
hypocenterC79#13519
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C22×C4 ◁ C2×C4×C8 ◁ #1945

252 conjugacy classes of subgroups; only the 91 normal subgroups are shown.

normal subgroups only

This group has 252 conjugacy classes of subgroups — too many to draw. Only its 91 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)(80,82,84,99,85,93,96,92)(81,86,89,100,90,101,88,102)(83,95,97,94,98,111,107,110)(87,103,105,91,106,108,104,109);(82,92,93,99)(86,100,101,102)(91,108,109,103)(94,95,110,111);(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)(80,81,83,87,96,88,107,104,85,90,98,106,84,89,97,105)(82,91,94,100,99,108,111,101,93,109,110,102,92,103,95,86)

Polycyclic presentation:

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

Conjugacy classes & character table

1756 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 89584);