Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of B(4,𝔽2) |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #120 |
| commutator | C23 | C23×C4 |
| Frattini, cosocle | C24 | C24 |
| socle | C22 | C2×#120 |
| prime radical | C22×#41 | C22 |
| LCS | G ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C24 ▷ C2 ▷ C1 | |
751 conjugacy classes of subgroups; only the 239 normal subgroups are shown.
This group has 751 conjugacy classes of subgroups — too many to draw. Only its 239 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2,4,3)(10,16)(17,20);(1,3,4,2)(5,6)(7,10)(8,11)(9,12)(13,17)(14,16)(15,18)(19,20);(5,7)(6,10)(8,13)(9,14)(11,17)(12,16)(15,19)(18,20);(5,8,9,15)(6,11,12,18)(7,13,14,19)(10,17,16,20)Polycyclic presentation:
2^8|a^2=g,b^2=g,d^2=h,b^a=be,c^a=cf,f^b=fh,e^c=eh64 conjugacy classes — view the full character table.
| maximal subgroup of | #147331, #147332, #148240, … |
| maximal normal subgroup of | #147331, #147332, #148240, … |
| maximal quotient of | #192027, #192031, #192035, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13876);