Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24390 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | #2619 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×#117 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
457 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)(8,9)(10,12)(13,14,19,22,18,23,17,24)(15,25,26,28,16,20,27,21);(1,2)(3,4)(6,9)(10,11)(13,15)(14,20)(16,18)(17,27)(19,26)(21,22)(23,25)(24,28);(2,4)(13,16,18,15)(14,21,23,28)(17,27,19,26)(20,24,25,22);(5,7,8,12)(6,10,9,11)(13,17,18,19)(14,22,23,24)(15,26,16,27)(20,28,25,21)Polycyclic presentation:
2^8|a^2=fh,c^2=h,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,d^b=dh,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#24668, #6448959, #6448966, … |
| maximal normal subgroup of | C2×#24668, #6448959, #6448966, … |
| maximal quotient of | #276159, #276161, #276167, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17656);