Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #3532 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24×C4 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, cosocle | C23 | C25 |
| commutator | C22 | C24×C4 |
| prime radical | C2×#550 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1284 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,4,3)(6,9)(7,8)(13,14,16,18)(15,19,20,17);(5,6,10,9)(7,12,8,11)(13,14,16,18)(15,17,20,19);(5,7,10,8)(6,11,9,12)(13,14)(15,17)(16,18)(19,20);(1,3,4,2)(5,8,10,7)(6,12,9,11)(13,15,16,20)(14,17,18,19);(5,9,10,6)(7,12,8,11)Polycyclic presentation:
2^8|a^2=h,b^2=g,c^2=f,d^2=fh,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=df76 conjugacy classes — view the full character table.
| maximal subgroup of | #6399561, #6399565, #6399577, … |
| maximal normal subgroup of | #6399561, #6399565, #6399577, … |
| maximal quotient of | #513827, #513853, #513865, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27465);