Finite Group Databasebeta

#34178647

order20224
automorphism?
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C22×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8116

Subgroups

subgroupG/H
centerC22C2×C79⋊#95
commutatorC23×C79C2×C42
FrattiniC23×C4C22×D79
FittingC79×#2920C2
socleC22×C79C2×#95
prime radicalC24×C79C22×C4
cosocleC23×C4×C79C23
hypercenter#2920D79
hypocenterC79#8116
LCSG ▷ C23×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C42 ◁ #2920

562 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 5056

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

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=h,f^2=g,b^a=bd,d^a=dg,f^a=fh,i^a=i^78,c^b=ch,d^b=dh,e^b=eg

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, 59946);