Finite Group Databasebeta

#34175644

order20224
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7350

Subgroups

subgroupG/H
centerC2#23761330
commutatorC22×C4×C79C2×C8
Frattini#407C2×D79
FittingC79×#1822C2
socleC2×C79#1317
prime radicalC24×C79M16
cosocle#407×C79C22
hypercenter#1822D79
hypocenterC79#7350
LCSG ▷ C22×C4×C79 ▷ C23×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C22×C4 ◁ #407 ◁ #1822

178 conjugacy classes of subgroups; only the 43 normal subgroups are shown.

normal subgroups only

This group has 178 conjugacy classes of subgroups — too many to draw. Only its 43 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:

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

Polycyclic presentation:

2^8,79|a^2=d,b^2=g,c^2=h,d^2=f,f^2=h,b^a=bc,c^a=ce,e^a=eg,g^a=gh,i^a=i^78,d^b=deh,f^b=fh,d^c=dg,e^d=eh

Conjugacy classes & character table

1276 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56943);