Finite Group Databasebeta

#34176016

order20224
automorphism?
homologyAbelianization (H1) = C42 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7488

Subgroups

subgroupG/H
centerC4#19098349
commutatorC2×D4×C79C42
Frattini#532C2×D79
FittingC79×#2132C2
socleC2×C79#1390
prime radical, cosocle#532×C79C22
hypercenter#2132D79
hypocenterC79#7488
LCSG ▷ C2×D4×C79 ▷ C2×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C2×C4 ◁ C22×C4 ◁ #532 ◁ #2132

270 conjugacy classes of subgroups; only the 59 normal subgroups are shown.

normal subgroups only

This group has 270 conjugacy classes of subgroups — too many to draw. Only its 59 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 — 2 generators on 111 points:

(1,3,5,16,7,17,6,21)(2,8,11,23,12,25,20,24)(4,14,18,31,19,32,22,15)(9,13,26,29,27,30,10,28)(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)(82,83)(84,85)(86,87)(88,89)(90,91)(92,93)(94,95)(96,97)(98,99)(100,101)(102,103)(104,105)(106,107)(108,109)(110,111);(1,2,4,10,7,12,19,26)(3,13,15,25,17,30,31,8)(5,11,18,9,6,20,22,27)(14,24,21,28,32,23,16,29)(33,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,111,109,107,105,103,101,99,97,95,93,91,89,87,85,83,81,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,d^2=h,e^2=h,f^2=h,b^a=bc,c^a=cf,f^a=fg,g^a=gh,d^b=dfh,f^b=fh,g^b=gh,i^b=i^78,d^c=dgh,f^c=fh,f^d=fh

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, 57315);