Finite Group Databasebeta

#34185825

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #9429

Subgroups

subgroupG/H
centerC22#19098439
commutatorC42×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#1514C2
socleC22×C79#386
prime radical#532×C79C22
cosocleC2×C42×C79C23
hypercenter#1514D79
hypocenterC79#9429
LCSG ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ #1514

508 conjugacy classes of subgroups; only the 89 normal subgroups are shown.

normal subgroups only

This group has 508 conjugacy classes of subgroups — too many to draw. Only its 89 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) = 5056

A minimal faithful permutation representation — 3 generators on 119 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

1048 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 67124);