Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1913 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C23 | C2×C42 |
| Frattini, cosocle | C25 | C23 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C25 ◁ G | |
| LECS | G ▷ C25 ▷ C2 ▷ C1 | |
617 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 617 conjugacy classes of subgroups — too many to draw. Only its 143 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 — 3 generators on 20 points:
(2,4)(5,6)(7,10,14,17)(8,11)(9,12)(13,19,20,16)(15,18);(5,7)(6,10,12,17)(8,13)(9,14)(11,16,18,19)(15,20);(1,2,3,4)(5,8)(6,11)(7,13)(9,15)(10,16)(12,18)(14,20)(17,19)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=ef,b^a=bd,c^a=ce,d^a=dh,g^a=gh,d^b=dh,e^b=eh,f^b=fh,d^c=dh58 conjugacy classes — view the full character table.
| maximal subgroup of | #94168, #94170, #94172, … |
| maximal normal subgroup of | #94168, #94170, #94172, … |
| maximal quotient of | #110086, #110092, #110096, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3926);