Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D42 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C22×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C22×C4 | C24 |
| commutator | C22 | C22×C42 |
| socle | C23 | C23×C4 |
| prime radical | C24 | C22×C4 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
511 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6)(7,10)(8,9)(11,12)(13,14,16,15,17,18,20,19);(1,2,3,4)(6,9)(10,12);(13,15,16,18,17,19,20,14);(5,7,8,11)(6,10,9,12)(14,18)(15,19)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=f,d^2=e,f^2=h,b^a=be,c^a=ch,d^a=dh,d^c=dh100 conjugacy classes — view the full character table.
| maximal subgroup of | #108468, #108469, #108682, … |
| maximal normal subgroup of | #108468, #108469, #108682, … |
| maximal quotient of | #183730, #183739, #183747, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13468);