Finite Group Databasebeta
Cayley diagram

C2×#131 #567

order64
nilpotency class2
isoclinismisoclinic class of D4
automorphismAut(G) = C2×#11713200 (order 1536) · Inn(G) = C22 · Out(G) = C2×D4×S4
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#131

Subgroups

subgroupG/H
centerC2×C8C22
commutatorC2C23×C4
Frattini, cosocleC4C24
socleC22C22×C4
prime radicalC2×#41C2
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ G
LECSG ▷ C4 ▷ C2 ▷ C1

133 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 18 points:

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

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

derived subgroup of#142616, #142617, #142618, …
Frattini subgroup of#7207, #7208, #7227, …
Fitting subgroup ofC2×#131⋊C3, C2×#4628, #73119, …
maximal subgroup of#1757, #1764, #1765, …
maximal normal subgroup of#1757, #1764, #1765, …
maximal quotient ofC2×#405, C4×#131, C2×#408, …
automorphism group ofC2×C32, M64
outer automorphism group ofC2×C32, C22⋊C32, C4⋊C32, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(64, 248);