Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24384 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
517 conjugacy classes of subgroups; only the 133 normal subgroups are shown.
This group has 517 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) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6)(7,11)(8,10)(9,12)(13,14,18,19,17,16,15,20);(1,2)(3,4)(5,7,8,12)(6,9,10,11)(13,15,17,18)(14,19,16,20);(2,4)(13,16,17,14)(15,20,18,19);(6,10)(9,11)Polycyclic presentation:
2^8|a^2=fh,b^2=e,c^2=h,f^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | #267765, #267767, #267781, … |
| maximal normal subgroup of | #267765, #267767, #267781, … |
| maximal quotient of | #274238, #274244, #274250, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17497);