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 | |
698 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)(3,6)(4,5)(7,8)(9,10,14,11)(12,15,19,17)(13,18,21,16)(20,23,24,22)(25,26)(27,33)(28,36)(29,35)(30,31)(32,37)(34,39)(38,40);(1,3,5,8)(2,6,4,7)(10,11)(12,19)(13,21)(22,23)(26,31)(28,37)(29,33)(34,38);(2,4)(6,7)(9,11,14,10)(12,15,19,17)(13,18,21,16)(20,22,24,23)(25,27)(26,29)(28,38)(30,35)(31,33)(32,40)(34,37)(36,39);(1,4,5,2)(3,7,8,6)(9,12,14,19)(10,15,11,17)(13,20,21,24)(16,22,18,23)(25,28)(26,32)(27,34)(29,39)(30,37)(31,36)(33,40)(35,38);(1,3)(2,6)(4,7)(5,8)(9,13)(10,16)(11,18)(12,20)(14,21)(15,22)(17,23)(19,24)(25,29)(26,27)(28,39)(30,33)(31,35)(32,34)(36,38)(37,40)Polycyclic presentation:
2^8|a^2=h,b^2=fgh,c^2=h,d^2=fg,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×#57630, #8101434, #8101949, … |
| maximal normal subgroup of | C2×#57630, #8101434, #8101949, … |
| maximal quotient of | #585852, #586558, #586876, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 50618);