Finite Group Databasebeta

#34176587

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7650

Subgroups

subgroupG/H
centerC23C2×C22⋊Dic79
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC4×#125×C79C2
socle, prime radicalC23×C79C2×C22⋊C4
cosocleC2×C42×C79C23
hypercenterC4×#125D79
hypocenterC79#7650
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C23 ◁ C43 ◁ C4×#125

384 conjugacy classes of subgroups; only the 119 normal subgroups are shown.

normal subgroups only

This group has 384 conjugacy classes of subgroups — too many to draw. Only its 119 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) = 119
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 119 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)(80,82,84,83)(81,85,86,87)(88,91,92,100)(89,94,95,99)(90,97,98,103)(93,101,96,102)(105,110)(109,117)(111,118)(112,119);(88,90,92,98)(89,93,95,96)(91,97,100,103)(94,101,99,102)(104,106)(105,109)(107,115)(108,114)(110,117)(111,119)(112,118)(113,116);(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)(80,81,83,85,84,86,82,87)(88,89)(90,96,98,93)(91,99)(92,95)(94,100)(97,101,103,102)(104,105)(106,112,114,119)(107,111)(108,110)(109,113,117,115)(116,118)

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=fh,d^2=g,e^2=h,b^a=bd,c^a=cfgh,d^a=df,i^a=i^78,d^b=dg,e^b=efg

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, 57886);