Finite Group Databasebeta

C79×#13427 #34125116

order20224
nilpotency class4
isoclinismisoclinic class of #13357
automorphism?
homologyAbelianization (H1) = C23×C79 · Schur multiplier (H2) = C23

Aliases

direct productC79×#13427

Subgroups

subgroupG/H
center, socleC22×C79B(4,𝔽2)
commutator, Frattini, cosocleC22×Q8C23×C79
prime radicalC22×D4×C79D4
LCSG ▷ C22×Q8 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C79 ◁ C23×C79 ◁ C22×Q8×C79 ◁ G

462 conjugacy classes of subgroups; only the 90 normal subgroups are shown.

normal subgroups only

This group has 462 conjugacy classes of subgroups — too many to draw. Only its 90 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) = 5056

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

(2,4)(5,6,8,10)(7,13,15,20)(9,18,17,12)(11,19,14,16)(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);(1,2)(3,4)(6,10)(7,14)(9,17)(11,15)(13,19)(16,20);(1,2,3,4)(5,7,8,15)(6,11,10,14)(9,19,17,16)(12,20,18,13)

Conjugacy classes & character table

2449 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 6415);