Finite Group Databasebeta
Cayley diagram

C2×#104 #420

order64
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) = C2×#3484 (order 256) · Inn(G) = D4 · Out(G) = C22×D4
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

direct productC2×#104

Subgroups

subgroupG/H
centerC2×C4D4
commutatorC4C22×C4
Frattini, cosocleC2×C4C23
socleC22C22⋊C4
prime radicalC2×#41C2
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

85 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 10
transitive degreeμt(G) = 16

A minimal faithful permutation representation — 3 generators on 10 points:

(1,2);(3,4,6,9,7,5,10,8);(3,5)(4,7)(6,8)(9,10)

Conjugacy classes & character table

28 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#104, #1759, #1764, …
maximal normal subgroup ofC4×#104, #1759, #1764, …
maximal quotient ofC2×D4⋊C8, C2×Q8⋊C8, #1476, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(64, 101);