Finite Group Databasebeta

#34186253

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

Aliases

No aliases for this group.

Splittings

FittingC79×#2921 ⋊ C2
SylowC79 ⋊ #9512

Subgroups

subgroupG/H
centerC22#19098442
commutatorC24×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#2921C2
socleC22×C79#386
prime radicalC24×D79C2×C4
cosocleC23×C4×C79C23
hypercenter#2921D79
hypocenterC79#9512
LCSG ▷ C24×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #2921

558 conjugacy classes of subgroups; only the 99 normal subgroups are shown.

normal subgroups only

This group has 558 conjugacy classes of subgroups — too many to draw. Only its 99 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)(80,83,84,90)(81,86,87,93)(82,88,89,94)(85,91,92,95)(96,99,101,107)(97,102,103,106)(98,105,104,111)(100,109,110,108);(80,82)(81,85,87,92)(83,88)(84,89)(86,91,93,95)(90,94)(96,98,100,103,101,104,110,97)(99,105,109,106,107,111,108,102);(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)(82,85,89,92)(83,86)(84,87)(88,91,94,95)(90,93)(96,97,100,104,101,103,110,98)(99,106,108,111,107,102,109,105)

Polycyclic presentation:

2^8,79|a^2=f,b^2=df,c^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eh,i^a=i^78,d^b=dg,e^b=eh,f^b=fg,d^c=dh,f^c=fh

Conjugacy classes & character table

1753 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 67552);