Finite Group Databasebeta

#34205160

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC2×#350×C79 ⋊ C2
SylowC79 ⋊ #12983

Subgroups

subgroupG/H
centerC2×C8D4×D79
commutatorC2×C4×C79C22×C8
FrattiniC22×C8C22×D79
FittingC2×#350×C79C2
socleC22×C79C2×C22⋊C8
prime radical#19099070C4
cosocleC22×C8×C79C23
hypercenterC2×#350D79
hypocenterC79#12983
LCSG ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C8 ◁ C22×C8 ◁ C2×#350

508 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 115
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 115 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)(81,83);(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)(84,86,96,104,87,97,103,113,90,100,102,112,89,99,88,98)(85,91,105,109,101,110,93,106,94,107,111,115,92,95,108,114);(80,81)(82,83)(84,85,88,93,89,92,102,105,90,94,103,108,87,101,96,111)(86,95,98,109,99,107,112,114,100,110,113,115,97,91,104,106)

Polycyclic presentation:

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

Conjugacy classes & character table

2272 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 86459);