Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #58990 |
| automorphism | Aut(G) order 131072 |
| 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 | C2×#121 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1187 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(5,6,9,12)(7,11,8,10)(14,17)(15,19);(2,4)(5,7,9,8)(6,10,12,11)(14,17)(15,19);(13,14,16,17)(15,18,19,20);(1,2)(3,4)(13,15)(14,18)(16,19)(17,20);(5,8,9,7)(6,11,12,10)Polycyclic presentation:
2^8|a^2=f,b^2=f,c^2=g,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | #98571, #246473, #246474, … |
| maximal normal subgroup of | #98571, #246473, #246474, … |
| maximal quotient of | #531660, #531685, #531867, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 52024);