Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24412 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#120 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | #3484 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
790 conjugacy classes of subgroups; only the 137 normal subgroups are shown.
This group has 790 conjugacy classes of subgroups — too many to draw. Only its 137 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) = 32 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6,10,18,9,11,8,13)(7,14,17,12,15,20,16,19);(1,2)(3,4)(6,11)(8,10)(12,19)(16,17);(2,4)(5,7)(6,12)(8,17)(9,15)(10,16)(11,19)(13,20)(14,18);(6,11)(8,10)(12,19)(16,17)Polycyclic presentation:
2^8|a^2=fh,f^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,c^b=cg,f^b=fh,e^c=eh,f^c=fh,f^d=fh43 conjugacy classes — view the full character table.
| maximal subgroup of | #501158, #501161, #501164, … |
| maximal normal subgroup of | #501158, #501161, #501164, … |
| maximal quotient of | #267468, #267476, #267484, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17401);