Finite Group Databasebeta
Cayley diagram

#508

order64
nilpotency class4
isoclinismisoclinic class of D16
automorphismAut(G) = C2×AGL(1,ℤ/16) (order 256) · Inn(G) = D8 · Out(G) = C22×C4
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC4D8
commutator, Frattini, cosocleC8C23
socleC2C2×D8
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C4 ◁ C2×C4 ◁ C2×C8 ◁ G
LECSG ▷ C8 ▷ C4 ▷ C2 ▷ C1

42 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 3 generators on 32 points:

(1,2)(3,12)(4,9)(5,17)(6,21)(7,11)(8,14)(10,19)(13,28)(15,29)(16,27)(18,23)(20,31)(22,26)(24,32)(25,30);(1,3)(2,8)(4,13)(5,18)(6,22)(7,15)(9,23)(10,26)(11,25)(12,17)(14,19)(16,30)(20,32)(21,24)(27,28)(29,31);(1,4,7,6)(2,9,11,21)(3,13,15,22)(5,16,20,19)(8,23,25,24)(10,17,27,31)(12,28,29,26)(14,18,30,32)

Polycyclic presentation:

2^6|c^2=f,d^2=ef,e^2=f,b^a=bd,d^a=de,e^a=ef,d^b=de,e^b=ef

Conjugacy classes & character table

22 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#1417, #1418, #2178, …
maximal normal subgroup of#1417, #1418, #2178, …
maximal quotient of#2138, #2158, C4×D16, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(64, 189);