Finite Group Databasebeta
Cayley diagram

#490

order64
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) = #72213256 (order 1024) · Inn(G) = C2×D4 · Out(G) = B(4,𝔽2)
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×D4
commutator, Frattini, cosocleC2×C4C23
prime radical#127C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

55 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 3 generators on 16 points:

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

Polycyclic presentation:

2^6|b^2=ef,c^2=d,d^2=f,e^2=f,b^a=bd,c^a=ce,d^a=df,e^a=ef,c^b=cf

Conjugacy classes & character table

16 conjugacy classes — view the full character table.

Relationships

Frattini subgroup of#7523, #7524, C2×#7523, …
maximal subgroup of#1355, #1412, #1656, …
maximal normal subgroup of#1355, #1412, #1656, …
maximal quotient of#1836, #1936, #1961, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(64, 171);