Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
355 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,8)(4,6)(5,7)(9,10)(11,16)(12,15)(13,14)(17,18,21,25)(19,26,29,23)(20,30,22,24)(27,32,28,31);(1,3,5,4)(2,6,7,8)(10,14)(15,16)(17,19,21,29)(18,23,25,26)(20,28,22,27)(24,31,30,32);(1,4,5,3)(2,6,7,8)(9,11,13,12)(10,15,14,16)(19,27)(20,22)(23,31)(24,30)(26,32)(28,29);(2,7)(6,8)(9,12,13,11)(10,16,14,15)(17,20,21,22)(18,24,25,30)(19,28,29,27)(23,31,26,32)Polycyclic presentation:
2^8|a^2=h,b^2=ef,c^2=eh,d^2=fh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,d^c=dh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27353, #6449459, #6449465, … |
| maximal normal subgroup of | C2×#27353, #6449459, #6449465, … |
| maximal quotient of | #361402, #363589, #366023, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20341);