Finite Group Databasebeta

#34207203

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13342

Subgroups

subgroupG/H
centerC22#19098697
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
Fitting, prime radicalC79×#3150C2
socleC22×C79#447
hypercenter#3150D79
hypocenterC79#13342
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C4 ◁ C2×#97 ◁ #3150

558 conjugacy classes of subgroups; only the 105 normal subgroups are shown.

normal subgroups only

This group has 558 conjugacy classes of subgroups — too many to draw. Only its 105 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) = 115
transitive degreeμt(G) = 5056

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

Polycyclic presentation:

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

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88502);