Finite Group Databasebeta
Cayley diagram

C2×#1838 #20767

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1838

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C2×C4⋊C4
prime radicalC24C2×Q8
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

415 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 26 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#110009, #116545, #116546, …
maximal normal subgroup of#110009, #116545, #116546, …
maximal quotient ofC2×#8786, #191166, C2×#8787, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13755);