Finite Group Databasebeta

#34175226

order20224
automorphism?
homologyAbelianization (H1) = C4×C8 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7186

Subgroups

subgroupG/H
centerC22×C4C22⋊Dic79
commutatorC2×C4×C79C4×C8
FrattiniC23×C8C2×D79
FittingC79×#1729C2
socleC23×C79C22⋊C8
prime radicalC24×C79M16
cosocleC23×C8×C79C22
hypercenter#1729D79
hypocenterC79#7186
LCSG ▷ C2×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ #1729

326 conjugacy classes of subgroups; only the 119 normal subgroups are shown.

normal subgroups only

This group has 326 conjugacy classes of subgroups — too many to draw. Only its 119 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) = 123
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 2 generators on 123 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)(80,81,82,83)(84,86)(85,88)(87,91)(89,90)(92,94)(93,99)(95,108)(96,110)(97,105)(98,107)(100,116)(101,118)(102,104)(103,115)(106,112)(109,122)(111,113)(114,120)(117,121)(119,123);(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)(84,85)(86,90,91,88)(87,89)(92,93,96,101,97,102,111,119,98,103,112,120,95,100,109,117)(94,104,106,121,105,115,122,118,107,116,110,123,108,99,113,114)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=h,d^2=g,g^2=h,b^a=bc,c^a=cf,i^a=i^78,c^b=ch,d^b=dfh

Conjugacy classes & character table

2260 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56525);