Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #25140 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | #3151 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
468 conjugacy classes of subgroups; only the 125 normal subgroups are shown.
This group has 468 conjugacy classes of subgroups — too many to draw. Only its 125 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:
(2,3)(5,6,11,17,10,8,9,13)(7,12,18,20,15,16,14,19);(1,2,4,3)(5,7,9,14,10,15,11,18)(6,12,13,19,8,16,17,20);(5,8,10,6)(7,12,15,16)(9,13,11,17)(14,20,18,19);(1,3,4,2)Polycyclic presentation:
2^8|a^2=fh,b^2=ef,c^2=h,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,f^c=fh43 conjugacy classes — view the full character table.
| maximal subgroup of | #285187, #285189, #285204, … |
| maximal normal subgroup of | #285187, #285189, #285204, … |
| maximal quotient of | #287742, #287747, #287754, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18395);