Finite Group Databasebeta

#34196946

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11336

Subgroups

subgroupG/H
centerC2×C4#14579157
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC2×#424×C79C2
socleC22×C79#399
prime radicalC24×C79#41
cosocleC23×C4×C79C23
hypercenterC2×#424D79
hypocenterC79#11336
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ C2×#424

694 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:

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

Polycyclic presentation:

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

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, 78245);