Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23924 |
| 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×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ #376 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
383 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6,8,9)(7,11,12,10)(13,14,16,20)(15,22,23,18)(17,19,25,21)(24,26,28,27);(1,2,3,4)(6,9)(10,11)(13,15)(14,18)(16,23)(17,24)(19,27)(20,22)(21,26)(25,28);(2,4)(14,19)(15,23)(17,25)(18,26)(20,21)(22,27);(5,7,8,12)(6,10,9,11)(14,20)(15,23)(19,21)(24,28)Polycyclic presentation:
2^8|a^2=e,b^2=gh,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^b=dh,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#28215, #6463816, #6463822, … |
| maximal normal subgroup of | C2×#28215, #6463816, #6463822, … |
| maximal quotient of | #317596, #317607, #317609, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21203);