Finite Group Databasebeta

#34204047

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Splittings

FittingC79×#1891 ⋊ C2
SylowC79 ⋊ #12756

Subgroups

subgroupG/H
centerC2#23763347
commutatorC2×D4×C79C22×C4
FrattiniC2×#41C22×D79
FittingC79×#1891C2
socleC2×C79#1790
prime radical#23777675C2
cosocleC2×#41×C79C23
hypercenter#1891D79
hypocenterC79#12756
LCSG ▷ C2×D4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×#41 ◁ #1891

758 conjugacy classes of subgroups; only the 103 normal subgroups are shown.

normal subgroups only

This group has 758 conjugacy classes of subgroups — too many to draw. Only its 103 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) = 2528

A minimal faithful permutation representation — 3 generators on 111 points:

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

Polycyclic presentation:

2^8,79|a^2=f,c^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dg,g^a=gh,e^b=egh,f^b=fg,i^b=i^78,d^c=dg,e^d=eh,f^d=fh

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 85346);