Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3264 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4 |
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 | |
381 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,3,4)(5,6)(7,10)(8,12)(9,11)(13,14,19,21,18,22,16,17)(15,23,24,20,27,28,26,25);(5,7,9,8)(6,10,11,12)(13,15)(14,20)(16,24)(17,28)(18,27)(19,26)(21,23)(22,25);(5,8,9,7)(6,10,11,12)(13,16,18,19)(14,21,22,17)(15,24,27,26)(20,23,25,28);(13,17,16,22,18,21,19,14)(15,25,26,28,27,20,24,23)Polycyclic presentation:
2^8|a^2=g,b^2=fh,c^2=f,d^2=e,e^2=h,g^2=h,b^a=be,c^a=cf,d^b=de,e^b=eh,g^b=gh,d^c=dh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#22818, #6380648, #6380657, … |
| maximal normal subgroup of | C2×#22818, #6380648, #6380657, … |
| maximal quotient of | #226787, #226802, #226806, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15806);