Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23900 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#120 |
| commutator, Frattini, cosocle | C24 | C24 |
| prime radical | #3484 | C2 |
| LCS | G ▷ C24 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C25 ◁ G | |
| LECS | G ▷ C24 ▷ C2 ▷ C1 | |
1028 conjugacy classes of subgroups; only the 147 normal subgroups are shown.
This group has 1028 conjugacy classes of subgroups — too many to draw. Only its 147 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:
(5,6,9,12)(7,10,14,17)(8,11,15,18)(13,19,20,16);(1,2)(3,4)(5,7)(6,10)(8,13)(9,14)(11,16)(12,17)(15,20)(18,19);(2,4)(5,8)(6,11)(7,13)(9,15)(10,16)(12,18)(14,20)(17,19);(5,7)(6,10)(8,13)(9,14)(11,16)(12,17)(15,20)(18,19)Polycyclic presentation:
2^8|a^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,f^b=fh,e^c=eh,f^d=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | #139701, #139703, #139732, … |
| maximal normal subgroup of | #139701, #139703, #139732, … |
| maximal quotient of | #245226, #245230, #245232, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16889);