Finite Group Databasebeta

#34187211

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #9671

Subgroups

subgroupG/H
centerC2×C4#14579132
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC2×C4×Q16×C79C2
socleC22×C79#390
prime radicalC23×C79C4×D4
cosocleC2×C42×C79C23
hypercenterC2×C4×Q16D79
hypocenterC79#9671
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ C2×C4×Q16

434 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 119
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 119 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)(80,83,84,85)(81,86,82,87)(88,91,92,102,93,103,105,116)(89,95,97,101,96,109,104,115)(90,98,100,112,99,111,113,117)(94,106,107,110,108,118,114,119);(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)(80,82,85,87,84,81,83,86)(88,90,93,99)(89,94)(91,98,103,111)(92,100,105,113)(95,106)(96,108)(97,107)(101,110)(102,112,116,117)(104,114)(109,118)(115,119);(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)(80,81,85,86,84,82,83,87)(88,89)(90,94,99,108)(91,101)(92,104)(93,96)(95,102)(97,105)(98,110,111,119)(100,114,113,107)(103,115)(106,117,118,112)(109,116)

Polycyclic presentation:

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

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, 68510);