Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23918 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| 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 | |
573 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6)(7,11)(8,9)(10,12)(13,14)(15,22)(16,24)(17,21)(18,19)(20,23)(25,28)(26,27);(1,2)(3,4)(6,9)(10,11)(13,15,17,18)(14,19,21,22)(16,23,25,26)(20,24,27,28);(2,4)(13,16,17,25)(14,20,21,27)(15,23,18,26)(19,24,22,28);(5,7,8,12)(6,10,9,11)(14,21)(19,22)(20,27)(24,28)Polycyclic presentation:
2^8|b^2=h,c^2=h,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,f^c=fh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#24161, #6448684, #6448695, … |
| maximal normal subgroup of | C2×#24161, #6448684, #6448695, … |
| maximal quotient of | #258302, #258314, #258326, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17149);