Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D4×#120 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C27×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C2×#546 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1350 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(2,3)(5,6)(7,10)(8,9)(11,12);(1,2,4,3)(5,6)(7,11)(8,9)(10,12)(13,14,16,18)(15,17,20,19);(1,3,4,2)(6,9)(10,11)(13,14)(15,19)(16,18)(17,20);(5,6)(7,11)(8,9)(10,12)(13,15)(14,17)(16,20)(18,19);(5,7)(6,10)(8,12)(9,11)(13,14)(15,19)(16,18)(17,20)Polycyclic presentation:
2^8|b^2=gh,c^2=f,b^a=bf,c^a=cg,c^b=ch,e^b=eh,d^c=dh,e^d=eh70 conjugacy classes — view the full character table.
| maximal subgroup of | #6579232, #6579235, #6579245, … |
| maximal normal subgroup of | #6579232, #6579235, #6579245, … |
| maximal quotient of | D4×#388, #518980, #518981, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 29226);