Finite Group Databasebeta

#34206861

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13280

Subgroups

subgroupG/H
centerC22C2×#14579083
commutatorC2×C8×C79C22×C4
FrattiniC22×C8C22×D79
FittingC79×#2150C2
socleC22×C79C2×#102
prime radicalC23×C79C2×SD16
cosocleC22×C8×C79C23
hypercenter#2150D79
hypocenterC79#13280
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ #2150

334 conjugacy classes of subgroups; only the 127 normal subgroups are shown.

normal subgroups only

This group has 334 conjugacy classes of subgroups — too many to draw. Only its 127 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) = 119
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 119 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)(80,82,83,87)(81,84,85,86)(89,96)(95,111)(97,106)(98,114)(99,115)(100,118)(112,116)(113,117);(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)(88,90,101,105,92,103,94,110)(89,95,99,117,96,111,115,113)(91,104,93,109,107,119,108,102)(97,116,98,100,106,112,114,118);(80,81,83,85)(82,86,87,84)(88,89,93,98,101,115,107,97,92,96,108,114,94,99,91,106)(90,100,104,95,110,112,102,117,103,118,119,111,105,116,109,113)

Polycyclic presentation:

2^8,79|a^2=f,b^2=defg,c^2=eh,d^2=g,f^2=gh,g^2=h,b^a=bd,c^a=ce,d^a=dh,d^b=dg,f^b=fg,g^b=gh,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, 88160);