Finite Group Databasebeta
Cayley diagram

C2×#1488 #17442

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1488

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC23C2×C22⋊C4
prime radicalC22×#41C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

635 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)(13,20)(14,18)(15,23)(16,19)(17,21)(22,25)(24,26);(11,13)(12,17)(14,21)(15,24)(16,22)(18,25)(19,26)(20,23);(4,7)(8,10)(11,14,16,15)(12,18,19,23)(13,21,22,24)(17,25,26,20)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105693, #105703, #105868, …
maximal normal subgroup of#105693, #105703, #105868, …
maximal quotient ofC2×#7608, C2×#7611, C2×#7612, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10430);