Finite Group Databasebeta
Cayley diagram

C4×#575 #60158

order256
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphismAut(G) order 65536
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC4×#575

Subgroups

subgroupG/H
centerC42C2×D4
commutatorC4C24×C4
Frattini, cosocleC2×C4C25
socleC22C23×D4
prime radicalC2×#575C2
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C42 ◁ C22×C42 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1421 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 20 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111224, #111225, #111577, …
maximal normal subgroup of#111224, #111225, #111577, …
maximal quotient ofC8×#575, #6344548, #6344585, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53146);