Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D4×D8 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | C22×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
385 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,4,3)(5,6)(7,10)(8,9)(11,12)(13,14)(15,22)(16,20)(17,25)(18,21)(19,23)(24,27)(26,28);(1,3,4,2)(6,9)(7,11);(13,15,18,24)(14,19,21,28)(16,23,17,26)(20,27,25,22);(5,7,8,11)(6,10,9,12)(13,16,18,17)(14,20,21,25)(15,23,24,26)(19,27,28,22)Polycyclic presentation:
2^8|a^2=g,b^2=g,c^2=h,d^2=eh,f^2=h,b^a=be,c^a=cf,f^a=fh,d^b=de,f^c=fh70 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#22967, #6381722, #6381742, … |
| maximal normal subgroup of | C2×#22967, #6381722, #6381742, … |
| maximal quotient of | #228787, #228799, #228811, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15955);