Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1795 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #379 |
| commutator | C2×C4 | C2×C42 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
697 conjugacy classes of subgroups; only the 175 normal subgroups are shown.
This group has 697 conjugacy classes of subgroups — too many to draw. Only its 175 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:
(5,6,9,12,10,13,8,14)(7,15,16,19,17,11,18,20);(1,2,3,4)(5,7)(6,11)(8,16)(9,18)(10,17)(12,19)(13,15)(14,20);(6,12)(8,9)(11,19)(13,14)(15,20)(16,18)Polycyclic presentation:
2^8|a^2=f,b^2=g,e^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dh,f^b=fh,e^c=eh,f^c=fh58 conjugacy classes — view the full character table.
| maximal subgroup of | #129785, #129787, #129829, … |
| maximal normal subgroup of | #129785, #129787, #129829, … |
| maximal quotient of | #105640, #105642, #105648, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3764);