Finite Group Databasebeta

C2×#7648640 #72267492

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C27 · Schur multiplier (H2) = C219

Aliases

direct productC2×#7648640

Subgroups

subgroupG/H
center, socleC24C26
commutator, Frattini, cosocleC23C27
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

112109 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 7 generators on 22 points:

(7,8)(9,12)(10,13)(11,14)(15,16)(17,21)(18,22)(19,20);(3,4,5,6)(7,9)(8,10)(11,13)(12,14);(3,4,5,6)(15,17)(16,18)(19,22)(20,21);(3,4)(5,6)(16,20)(18,21);(1,2);(7,9)(8,12)(10,14)(11,13)(15,17)(16,21)(18,20)(19,22);(7,10,11,12)(8,13,14,9)(15,18,19,21)(16,22,20,17)

Conjugacy classes & character table

196 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#72219280, C2×#72232067, #72331723, …
maximal normal subgroup ofC2×#72219280, C2×#72232067, #72331723, …
maximal quotient ofC2×#72232077, C2×#72232099, C2×#72232105, …

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

gap> G := Group((7,8)(9,12)(10,13)(11,14)(15,16)(17,21)(18,22)(19,20), (3,4,5,6)(7,9)(8,10)(11,13)(12,14), (3,4,5,6)(15,17)(16,18)(19,22)(20,21), (3,4)(5,6)(16,20)(18,21), (1,2), (7,9)(8,12)(10,14)(11,13)(15,17)(16,21)(18,20)(19,22), (7,10,11,12)(8,13,14,9)(15,18,19,21)(16,22,20,17));