Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23848 |
| 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 | C22×D8 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
449 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)(7,10)(8,9)(11,12)(13,14,18,17)(15,19,22,25)(16,20,24,26)(21,27,28,23);(2,4)(13,15,18,22)(14,19,17,25)(16,23,24,27)(20,21,26,28);(6,9)(10,12)(13,16,18,24)(14,20,17,26)(15,21,22,28)(19,27,25,23);(2,4)(5,7,8,11)(6,10,9,12)Polycyclic presentation:
2^8|a^2=eh,b^2=h,c^2=h,d^2=f,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26598, #6439397, #6439418, … |
| maximal normal subgroup of | C2×#26598, #6439397, #6439418, … |
| maximal quotient of | #310145, #310146, #310149, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19586);