Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #35346 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | #2410 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1291 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,3,4)(14,17)(18,20);(5,6)(7,11)(8,9)(10,12)(13,14)(15,18)(16,17)(19,20);(1,2)(3,4)(6,9)(10,11)(13,14)(15,18)(16,17)(19,20);(5,6)(7,10)(8,9)(11,12)(13,15,16,19)(14,18,17,20);(5,7)(6,10)(8,12)(9,11)Polycyclic presentation:
2^8|a^2=fg,d^2=f,b^a=bf,c^a=cg,c^b=ch,e^b=eh,d^c=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#35362, #7628721, #7628778, … |
| maximal normal subgroup of | C2×#35362, #7628721, #7628778, … |
| maximal quotient of | #515375, #515389, #515486, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 28350);