Finite Group Databasebeta

#34207498

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13391

Subgroups

subgroupG/H
centerC2#23764579
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
Fitting, prime radicalC79×#3067C2
socleC2×C79#2033
hypercenter#3067D79
hypocenterC79#13391
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22×C4 ◁ C2×#131 ◁ #3067

390 conjugacy classes of subgroups; only the 93 normal subgroups are shown.

normal subgroups only

This group has 390 conjugacy classes of subgroups — too many to draw. Only its 93 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88797);