#19591

order	256
nilpotency class	3
isoclinism	isoclinic class of #19552
automorphism	Aut(G) order 4096
homology	Abelianization (H₁) = C₂⁴ · Schur multiplier (H₂) = C₂⁴

Aliases

No aliases for this group.

Subgroups

	subgroup	G/H
center, socle	C₂²	C₂×#121
commutator, Frattini, cosocle	C₄²	C₂⁴
prime radical	#3247	C₂
LCS	G ▷ C₄² ▷ C₂² ▷ C₁
UCS	C₁ ◁ C₂² ◁ C₂×C₄² ◁ G
LECS	G ▷ C₄² ▷ C₂² ▷ C₁

295 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degree	μ(G) = 32
transitive degree	μ_t(G) = 128

A minimal faithful permutation representation — 4 generators on 32 points:

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

Polycyclic presentation:

2^8|a^2=gh,b^2=eg,d^2=gh,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,d^b=dgh,d^c=dg,f^c=fh

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of	C₂×#19591, #6354695, #6354698, …
maximal normal subgroup of	C₂×#19591, #6354695, #6354698, …
maximal quotient of	#189171, #197908, #197994, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 12579);