Finite Group Databasebeta

C79×#7220 #34118909

order20224
nilpotency class4
isoclinismisoclinic class of #7217
automorphism?
homologyAbelianization (H1) = C42×C79 · Schur multiplier (H2) = C4

Aliases

direct productC79×#7220

Subgroups

subgroupG/H
center, socleC22×C79#340
commutatorC2×C8C42×C79
Frattini, cosocleC2×C4×C8C22×C79
prime radicalC23×C79#103
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C79 ◁ C2×C42×C79 ◁ C2×C4×C8×C79 ◁ G

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

normal subgroups only

This group has 188 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) = 127
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 2 generators on 127 points:

(1,2)(3,9,10,6)(4,8)(5,7)(11,15,16,13)(12,14)(17,18,21,27,24,29,23,39)(19,30,32,45,34,46,37,41)(20,28,22,38,36,44,35,26)(25,33,40,31,43,47,42,48)(49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127);(1,3,4,11,5,10,12,16)(2,6,8,13,7,9,14,15)(17,19,22,33,21,37,36,48,24,34,35,47,23,32,20,31)(18,25,28,41,39,40,26,30,29,43,44,45,27,42,38,46)

Conjugacy classes & character table

4108 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 208);