Finite Group Databasebeta
Cayley diagram

C2×#3155 #60641

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28×C4

Aliases

direct productC2×#3155

Subgroups

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

1767 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#130001, #147882, #147884, …
maximal normal subgroup of#130001, #147882, #147884, …
maximal quotient ofC2×#19623, C2×#19627, C2×#19629, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53629);