Finite Group Databasebeta

#34197713

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11524

Subgroups

subgroupG/H
centerC4#19098537
commutatorC22×C4×C79C22×C4
FrattiniC2×M16C22×D79
FittingC79×#2922C2
socleC2×C79#1464
prime radicalC2×#41×C79C2×C4
cosocleC2×M16×C79C23
hypercenter#2922D79
hypocenterC79#11524
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C42 ◁ C4×M16 ◁ #2922

288 conjugacy classes of subgroups; only the 87 normal subgroups are shown.

normal subgroups only

This group has 288 conjugacy classes of subgroups — too many to draw. Only its 87 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

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

Polycyclic presentation:

2^8,79|a^2=e,c^2=f,d^2=h,e^2=g,g^2=h,b^a=bd,c^a=cg,d^a=df,f^a=fh,i^a=i^78,c^b=ch,d^b=dh,e^b=efh,e^c=eh,e^d=eh

Conjugacy classes & character table

2224 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 79012);