Finite Group Databasebeta

#34197176

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11380

Subgroups

subgroupG/H
center, FrattiniC23×C4C22×D79
commutatorC23×C79C22×C8
FittingC22×C4×Q8×C79C2
socle, prime radicalC24×C79C22×C4
cosocleC23×C4×C79C23
hypercenterC22×C4×Q8D79
hypocenterC79#11380
LCSG ▷ C23×C79 ▷ C79
UCSC1 ◁ C23×C4 ◁ C22×C4×Q8

1246 conjugacy classes of subgroups; only the 387 normal subgroups are shown.

normal subgroups only

This group has 1246 conjugacy classes of subgroups — too many to draw. Only its 387 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) = 103
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 103 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)(85,87)(96,98,99,103)(97,100,101,102);(81,83)(96,97,99,101)(98,102,103,100);(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)(82,83)(84,85)(86,87)(88,89,90,92,91,93,94,95)

Polycyclic presentation:

2^8,79|a^2=g,b^2=f,c^2=f,g^2=h,b^a=bd,c^a=ce,i^a=i^78,c^b=cf

Conjugacy classes & character table

3208 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 78475);