Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D4×D8 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×D4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
527 conjugacy classes of subgroups; only the 243 normal subgroups are shown.
This group has 527 conjugacy classes of subgroups — too many to draw. Only its 243 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:
(1,2,3,4)(6,9)(10,12)(14,17)(15,18)(19,20);(5,6)(7,10)(8,9)(11,12);(5,7,8,11)(6,10,9,12)(13,14,18,20,16,19,15,17);(6,9)(10,12)Polycyclic presentation:
2^8|a^2=g,c^2=efh,f^2=h,b^a=be,c^a=cf,f^a=fh,d^b=de70 conjugacy classes — view the full character table.
| maximal subgroup of | #135590, #135591, #135602, … |
| maximal normal subgroup of | #135590, #135591, #135602, … |
| maximal quotient of | #226212, #226222, #226232, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15693);