Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9103 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C22×#41 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
467 conjugacy classes of subgroups; only the 119 normal subgroups are shown.
This group has 467 conjugacy classes of subgroups — too many to draw. Only its 119 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 — 3 generators on 20 points:
(2,4)(5,6)(7,13,15,20)(8,11)(9,12)(10,14,18,17)(16,19);(1,2,3,4)(8,16)(10,18)(11,19)(14,17);(5,7)(6,10)(8,17)(9,15)(11,20)(12,18)(13,19)(14,16)Polycyclic presentation:
2^8|a^2=g,b^2=d,e^2=h,b^a=bd,c^a=ce,f^a=fh,c^b=cf,e^b=eh,e^c=eh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #131344, #131345, #131472, … |
| maximal normal subgroup of | #131344, #131345, #131472, … |
| maximal quotient of | #115719, #115720, #115769, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4060);