Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24274 |
| 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 | C24 | C2×D4 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
420 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6)(7,11)(8,10)(9,12)(13,14,18,20)(15,21,24,28)(16,26,25,19)(17,27,23,22);(1,2)(3,4)(5,7,8,12)(6,9,10,11)(13,15,23,16,18,24,17,25)(14,19,27,28,20,26,22,21);(2,4)(6,10)(9,11)(14,20)(15,24)(16,25)(22,27);(6,10)(9,11)(13,16,23,24,18,25,17,15)(14,21,27,19,20,28,22,26)Polycyclic presentation:
2^8|a^2=h,b^2=eh,d^2=ef,e^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,c^b=cg,d^b=dh,d^c=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26988, #6443646, #6443656, … |
| maximal normal subgroup of | C2×#26988, #6443646, #6443656, … |
| maximal quotient of | #313233, #313235, #313237, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19976);