Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #53390 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
687 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(1,2)(3,7)(4,5)(6,8)(10,11)(12,19)(13,21)(22,23)(25,26,30,33)(27,28,31,36)(29,32,38,40)(34,35,37,39);(2,5)(6,7)(9,10,14,11)(12,17,19,15)(13,18,21,16)(20,22,24,23)(25,27,30,31)(26,28,33,36)(29,37,38,34)(32,39,40,35);(9,11,14,10)(12,15,19,17)(13,18,21,16)(20,22,24,23)(25,27)(26,28)(29,34)(30,31)(32,35)(33,36)(37,38)(39,40);(1,2)(3,6)(4,5)(7,8)(9,12,14,19)(10,15,11,17)(13,20,21,24)(16,22,18,23)(25,28)(26,31)(27,33)(29,35)(30,36)(32,37)(34,40)(38,39);(1,3,4,8)(2,6,5,7)(9,13,14,21)(10,16,11,18)(12,20,19,24)(15,22,17,23)(25,29)(26,32)(27,34)(28,35)(30,38)(31,37)(33,40)(36,39)Polycyclic presentation:
2^8|a^2=h,b^2=gh,c^2=g,d^2=g,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=ch,d^b=df,e^b=egh,d^c=dgh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#55894, #8103020, #8103186, … |
| maximal normal subgroup of | C2×#55894, #8103020, #8103186, … |
| maximal quotient of | #585965, #586389, #587040, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 48882);