Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #11521 |
| automorphism | Aut(G) = C2×#72234840 (order 2048) · Inn(G) = #410 · Out(G) = C25 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C4 | #410 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×#41 | C23 |
| socle | C2 | #1782 |
| prime radical | #3444 | C2 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C4 ◁ C42 ◁ C4×#41 ◁ G | |
| LECS | G ▷ C2×#41 ▷ C22 ▷ C2 ▷ C1 | |
390 conjugacy classes of subgroups; only the 69 normal subgroups are shown.
This group has 390 conjugacy classes of subgroups — too many to draw. Only its 69 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 — 3 generators on 16 points:
(1,2)(3,10,12,6)(4,8)(5,9)(7,11,14,16)(13,15);(2,6)(7,8)(9,10)(14,15);(1,3)(2,7,9,14)(4,11)(5,12)(6,8,10,15)(13,16)Polycyclic presentation:
2^8|a^2=f,c^2=g,e^2=h,b^a=bd,c^a=ce,d^a=dg,g^a=gh,f^b=fg,f^c=fh,f^d=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #152076, #152077, #152083, … |
| maximal normal subgroup of | #152076, #152077, #152083, … |
| maximal quotient of | #129287, #129295, #129369, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5707);