Finite Group Databasebeta
Cayley diagram

C2×#1832 #20751

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 524288
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1832

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socle, prime radicalC24C22×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

503 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 30
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 30 points:

(1,2);(4,5)(7,8)(9,12)(10,11)(13,14)(15,16,18,21,19,22,25,28)(17,20,24,27,23,26,29,30);(3,4,6,5)(8,11)(12,14)(15,17)(16,20)(18,24)(19,23)(21,27)(22,26)(25,29)(28,30);(3,5,6,4)(7,9,10,13)(8,12,11,14)(17,23)(20,26)(24,29)(27,30)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#109933, #116052, #116053, …
maximal normal subgroup of#109933, #116052, #116053, …
maximal quotient ofC2×#8782, C2×#8783, #191141, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13739);