Finite Group Databasebeta

#34199269

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1341 ⋊ C2
SylowC79 ⋊ #11870

Subgroups

subgroupG/H
centerC2#23761966
commutatorC2×C8×C79C22×C4
FrattiniC2×M16C22×D79
FittingC79×#1341C2
socleC2×C79#1519
prime radical#23773046C2
cosocleC2×M16×C79C23
hypercenter#1341D79
hypocenterC79#11870
LCSG ▷ C2×C8×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×M16 ◁ #1341

392 conjugacy classes of subgroups; only the 73 normal subgroups are shown.

normal subgroups only

This group has 392 conjugacy classes of subgroups — too many to draw. Only its 73 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)(80,82,85,95,86,96,84,93)(81,88,90,92,91,106,101,109)(83,98,97,110,100,94,99,111)(87,102,103,105,104,108,89,107);(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)(81,87)(82,93)(83,97)(84,85)(88,105)(89,90)(91,104)(92,102)(95,96)(99,100)(101,103)(106,107)(108,109)(110,111);(80,81,84,90,86,91,85,101)(82,92,93,106,96,109,95,88)(83,87,97,89,100,104,99,103)(94,107,111,108,98,105,110,102)

Polycyclic presentation:

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

Conjugacy classes & character table

814 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 80568);