Finite Group Databasebeta

#34181100

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8594

Subgroups

subgroupG/H
centerC23C2×C22⋊Dic79
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC4×C4⋊Q8×C79C2
socle, prime radicalC23×C79C2×C22⋊C4
cosocleC2×C42×C79C23
hypercenterC4×C4⋊Q8D79
hypocenterC79#8594
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C23 ◁ C43 ◁ C4×C4⋊Q8

476 conjugacy classes of subgroups; only the 167 normal subgroups are shown.

normal subgroups only

This group has 476 conjugacy classes of subgroups — too many to draw. Only its 167 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) = 107
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 107 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)(85,88)(86,90)(92,94,95,101)(93,98,97,106)(96,105,103,102)(99,107,104,100);(80,81,82,83)(93,97)(98,106)(99,104)(100,107);(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)(81,83)(84,85,86,89,87,88,90,91)(92,93)(94,100)(95,97)(96,104)(98,102)(99,103)(101,107)(105,106)

Polycyclic presentation:

2^8,79|a^2=f,b^2=dh,c^2=h,e^2=h,f^2=gh,b^a=bd,c^a=ce,e^a=eg,i^a=i^78,e^c=eh,f^c=fgh

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62399);