Finite Group Databasebeta

C79×#12688 #34124377

order20224
nilpotency class4
isoclinismisoclinic class of #11499
automorphism?
homologyAbelianization (H1) = C22×C4×C79 · Schur multiplier (H2) = C25

Aliases

direct productC79×#12688

Subgroups

subgroupG/H
center, socleC22×C79C2×#99
commutatorC24C22×C4×C79
Frattini, cosocleC22×D4C23×C79
prime radicalC23×D4×C79C22
LCSG ▷ C24 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C79 ◁ C24×C79 ◁ C23×D4×C79 ◁ G

1220 conjugacy classes of subgroups; only the 158 normal subgroups are shown.

normal subgroups only

This group has 1220 conjugacy classes of subgroups — too many to draw. Only its 158 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) = 99
transitive degreeμt(G) = 2528

A minimal faithful permutation representation — 3 generators on 99 points:

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

Conjugacy classes & character table

3160 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 5676);