Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #16249 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C2×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C24 | C24 |
| prime radical | C25 | C23 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
641 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,3)(6,9)(7,11)(13,14)(15,18)(16,17)(19,20)(21,22,24,26)(23,25,27,28);(1,2,4,3)(6,9)(10,12)(14,17)(18,19)(21,23,24,27)(22,25,26,28);(2,3)(5,6,8,9)(7,10,11,12)(13,14)(15,19)(16,17)(18,20)(21,23)(22,25)(24,27)(26,28);(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,15,16,20)(14,18,17,19)(21,22)(23,25)(24,26)(27,28)Polycyclic presentation:
2^8|a^2=efg,b^2=fh,c^2=f,d^2=ef,b^a=be,c^a=cf,d^a=dh,c^b=cg,d^c=de52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#16794, #611537, #611545, … |
| maximal normal subgroup of | C2×#16794, #611537, #611545, … |
| maximal quotient of | #155707, #155720, #155806, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 9782);