Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C22×C4 | C24 |
| commutator, socle | C23 | C23×C4 |
| prime radical | C24 | C22×C4 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
646 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2)(3,4)(6,9)(10,11)(13,14,15,18,16,17,19,20);(5,6,8,9)(7,11,12,10);(2,4);(5,7,8,12)(6,10,9,11)(14,17)(18,20)Polycyclic presentation:
2^8|a^2=g,b^2=e,d^2=e,g^2=h,b^a=be,c^a=cf,d^a=dh,d^b=de76 conjugacy classes — view the full character table.
| maximal subgroup of | #99902, #99906, #99910, … |
| maximal normal subgroup of | #99902, #99906, #99910, … |
| maximal quotient of | #224291, #224292, #224293, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15498);