Finite Group Databasebeta
Cayley diagram

C2×#3121 #60550

order256
nilpotency class3
isoclinismisoclinic class of #3008
automorphismAut(G) order 65536
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3121

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#121C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1029 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 5 generators on 26 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#222241, #222249, #222273, …
maximal normal subgroup of#222241, #222249, #222273, …
maximal quotient ofC2×#20745, C2×#21127, C2×#21128, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53538);