Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30396 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | #2535 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×D4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
462 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2)(3,4)(5,6)(7,8)(9,11)(10,12)(13,14,17,20)(15,18,23,27)(16,19,24,28)(21,25,22,26);(5,7)(6,10)(8,11)(9,12)(13,15)(14,18)(16,21)(17,23)(19,25)(20,27)(22,24)(26,28);(2,4)(5,8,9,10)(6,7,11,12)(15,21)(16,24)(18,25)(19,28)(22,23)(26,27);(2,4)(6,11)(7,12)Polycyclic presentation:
2^8|a^2=h,c^2=e,g^2=h,b^a=be,c^a=cf,d^a=def,c^b=cg,d^b=de,g^b=gh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #6632314, #6632326, #6632346, … |
| maximal normal subgroup of | #6632314, #6632326, #6632346, … |
| maximal quotient of | #335735, #335736, #335739, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 23553);