Finite Group Databasebeta

#34175488

order20224
automorphism?
homologyAbelianization (H1) = C42 · Schur multiplier (H2) = C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7286

Subgroups

subgroupG/H
centerC2×C4#14579076
commutatorC22×C4×C79C42
FrattiniC2×C4×Q8C2×D79
FittingC79×#1985C2
socleC22×C79#342
prime radicalC23×C79#95
cosocleC2×C4×Q8×C79C22
hypercenter#1985D79
hypocenterC79#7286
LCSG ▷ C22×C4×C79 ▷ C23×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C22×C4 ◁ C2×C4×Q8 ◁ #1985

250 conjugacy classes of subgroups; only the 75 normal subgroups are shown.

normal subgroups only

This group has 250 conjugacy classes of subgroups — too many to draw. Only its 75 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) = 111
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 2 generators on 111 points:

(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)(80,82,84,92,85,93,83,91)(81,86,88,94,89,95,87,90)(96,97,99,102,100,103,107,111)(98,101,105,108,104,109,106,110);(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)(80,81,83,88,85,89,84,87)(82,90,91,86,93,94,92,95)(97,101)(98,104)(102,110)(103,109)(105,106)(108,111)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=f,d^2=fh,e^2=f,b^a=bc,c^a=cf,e^a=efg,c^b=cg,g^b=gh,i^b=i^78,e^c=eh

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56787);