Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23360 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #2380 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| prime radical | #3151 | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
378 conjugacy classes of subgroups; only the 133 normal subgroups are shown.
This group has 378 conjugacy classes of subgroups — too many to draw. Only its 133 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 16 |
| transitive degree | μt(G) = 16 |
A minimal faithful permutation representation — 4 generators on 16 points:
(1,2)(3,10,12,7)(4,13,11,16)(5,8)(6,9)(14,15);(1,3,6,12)(2,7,9,10)(4,14,11,5)(8,16,15,13);(1,4,5,3,6,11,14,12)(2,7,15,16,9,10,8,13);(2,8,9,15)(7,13,10,16)Polycyclic presentation:
2^8|a^2=g,b^2=h,c^2=ef,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=def,e^a=eh,c^b=cef,d^b=de,f^b=fh,g^b=gh,g^c=gh40 conjugacy classes — view the full character table.
| maximal subgroup of | #139425, #139427, #139429, … |
| maximal normal subgroup of | #139425, #139427, #139429, … |
| maximal quotient of | #232122, #232123, #232127, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16349);