Finite Group Databasebeta
Cayley diagram

#22255

order256
nilpotency class3
isoclinismisoclinic class of #3198
automorphismAut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socle, prime radicalC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

333 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 36
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 36 points:

(1,2,4,3)(5,6)(7,14)(8,12)(9,18)(10,13)(11,16)(15,20)(17,19)(23,29)(24,31)(26,32)(28,34)(30,35)(33,36);(1,3,4,2)(5,7)(6,11)(8,17)(9,15)(10,16)(12,20)(13,14)(18,19)(21,22)(23,26)(24,28)(25,27)(29,32)(30,33)(31,34)(35,36);(5,8,10,9)(6,12,13,18)(7,15,16,17)(11,19,14,20)(21,23,24,29,25,30,31,35)(22,26,28,32,27,33,34,36);(5,9,10,8)(6,12,13,18)(7,15,16,17)(11,20,14,19)(22,27)(23,30)(28,34)(29,35)

Polycyclic presentation:

2^8|a^2=g,b^2=g,c^2=ef,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=ce,d^b=dh,d^c=dh

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#22255, #6376359, #6376365, …
maximal normal subgroup ofC2×#22255, #6376359, #6376365, …
maximal quotient of#219267, #219271, #219293, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 15243);