Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D82 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | D42 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #547 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
302 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(2,7)(4,5)(8,14)(9,13)(10,11)(15,16)(17,18,21,25)(19,22,27,31)(20,23,28,24)(26,29,32,30);(1,2,6,9)(3,8,12,15)(4,7,5,13)(10,14,11,16)(17,19,21,27)(18,22,25,31)(20,26,28,32)(23,29,24,30);(1,3,6,12)(2,8,9,15)(4,10,5,11)(7,14,13,16)(18,23)(20,28)(22,29)(24,25)(26,32)(30,31);(1,4)(3,10)(5,6)(7,13)(11,12)(14,16)Polycyclic presentation:
2^8|a^2=h,b^2=gh,c^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,d^a=dg,e^a=eg,f^a=fh,d^b=de,e^b=eg,f^c=fh,e^d=eg49 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#19998, #6358398, #6358423, … |
| maximal normal subgroup of | C2×#19998, #6358398, #6358423, … |
| maximal quotient of | #220809, #220810, #220821, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 12986);