Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #60454 |
| automorphism | ? |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C29 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C23×D4 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C22×#41 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
1371 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)(5,6)(7,14)(8,12)(9,18)(10,13)(11,17)(15,19)(16,20);(5,7,9,17,10,16,8,15)(6,11,12,14,13,19,18,20);(2,4)(5,6)(7,11)(8,18)(9,12)(10,13)(14,17)(15,20)(16,19);(5,8,10,9)(6,12,13,18)(7,15,16,17)(11,14,19,20);(7,16)(11,19)(14,20)(15,17)Polycyclic presentation:
2^8|b^2=f,d^2=h,f^2=h,b^a=bf,c^a=cg,f^a=fh,e^b=eh,d^c=dh58 conjugacy classes — view the full character table.
| maximal subgroup of | #417579, #417580, #417601, … |
| maximal normal subgroup of | #417579, #417580, #417601, … |
| maximal quotient of | #6353767, #6353770, #6353773, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53444);