Finite Group Databasebeta

#34199478

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

Aliases

No aliases for this group.

Splittings

FittingC2×#364×C79 ⋊ C2
SylowC79 ⋊ #11920

Subgroups

subgroupG/H
centerC4#19098306
commutatorC42×C79C22×C4
FrattiniC4×C8C22×D79
FittingC2×#364×C79C2
socleC2×C79C2×#331
prime radical#23773828C2
cosocleC4×C8×C79C23
hypercenterC2×#364D79
hypocenterC79#11920
LCSG ▷ C42×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C22×C4 ◁ C2×C4×C8 ◁ C2×#364

400 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)(80,83,85,97)(81,87,90,89)(82,92,95,94)(84,96,99,107)(86,100,102,91)(88,103,106,105)(93,98,110,109)(101,104,111,108);(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)(81,86)(83,92)(84,98)(85,95)(87,100)(88,104)(89,91)(90,102)(93,107)(94,97)(96,110)(99,109)(101,105)(103,111)(106,108);(80,81,84,88,83,87,96,103,85,90,99,106,97,89,107,105)(82,91,93,108,94,102,109,111,95,100,110,104,92,86,98,101)

Polycyclic presentation:

2^8,79|a^2=e,c^2=h,d^2=g,e^2=fg,f^2=h,b^a=bd,d^a=df,f^a=fh,g^a=gh,d^b=dg,e^b=efgh,f^b=fh,i^b=i^78

Conjugacy classes & character table

2230 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 80777);