Finite Group Databasebeta

#34175936

order20224
automorphism?
homologyAbelianization (H1) = C2×C16 · Schur multiplier (H2) = C1

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7456

Subgroups

subgroupG/H
centerC8#14579092
commutatorC8×C79C2×C16
FrattiniC4×C16C2×D79
FittingC79×#1422C2
socleC2×C79#1367
prime radicalC22×C79#364
cosocleC4×C16×C79C22
hypercenter#1422D79
hypocenterC79#7456
LCSG ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C8 ◁ C2×C16 ◁ C4×C16 ◁ #1422

88 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 2 generators on 111 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)(80,82,83,95,85,96,86,84,88,98,101,102,87,97,100,103)(81,89,90,94,92,91,99,107,93,106,108,110,104,109,105,111);(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)(80,81,84,91,86,90,97,107,87,92,95,106,83,99,98,110,88,93,103,109,100,108,96,111,85,104,102,89,101,105,82,94)

Polycyclic presentation:

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

Conjugacy classes & character table

2248 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 57235);