Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30412 |
| 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 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
528 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,3,4)(5,6)(7,11)(8,10)(9,12)(13,14)(15,20)(16,21)(17,19)(18,22)(23,28)(24,26)(25,27);(5,7)(6,9)(8,12)(10,11)(14,19)(15,23)(16,18)(20,27)(24,25)(26,28);(2,4)(13,15)(14,20)(16,23)(17,24)(18,25)(19,26)(21,28)(22,27);(2,4)(6,10)(7,12)(13,16,17,18)(14,21,19,22)(15,23,24,25)(20,28,26,27)Polycyclic presentation:
2^8|a^2=f,d^2=h,g^2=h,b^a=be,c^a=cf,d^a=defh,c^b=cg,d^b=de,g^b=gh,g^c=gh40 conjugacy classes — view the full character table.
| maximal subgroup of | #6632155, #6632166, #6632172, … |
| maximal normal subgroup of | #6632155, #6632166, #6632172, … |
| maximal quotient of | #342493, #342494, #342497, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 23989);