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) = C25 |
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 | |
585 conjugacy classes of subgroups; only the 137 normal subgroups are shown.
This group has 585 conjugacy classes of subgroups — too many to draw. Only its 137 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)(13,14,17,19)(15,20,18,16);(1,2)(3,4)(5,7,8,12)(6,9,10,11)(13,15,17,18)(14,16,19,20);(2,4)(13,16,18,14,17,20,15,19);(6,10)(9,11)(14,19)(16,20)Polycyclic presentation:
2^8|a^2=h,b^2=e,c^2=f,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^c=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | #174830, #174832, #174854, … |
| maximal normal subgroup of | #174830, #174832, #174854, … |
| maximal quotient of | #290731, #290732, #290733, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18491);