Finite Group Databasebeta

#34196390

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11246

Subgroups

subgroupG/H
centerC4#19098467
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#1742C2
socleC2×C79#1441
prime radicalC24×C79#41
cosocleC23×C4×C79C23
hypercenter#1742D79
hypocenterC79#11246
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C23×C4 ◁ #1742

624 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 2528

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

Polycyclic presentation:

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

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, 77689);