Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3068 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×AGL(1,ℤ/8) | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
453 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2,4,3)(6,10)(7,14)(8,11)(13,18)(15,16)(17,20);(5,6,11,18,9,13,8,10)(7,12,14,20,16,19,15,17);(5,7)(6,12)(8,15)(9,16)(10,17)(11,14)(13,19)(18,20);(1,3,4,2)(6,13)(10,18)(12,19)(17,20)Polycyclic presentation:
2^8|a^2=g,b^2=eh,d^2=g,e^2=h,f^2=h,b^a=be,c^a=cf,e^a=eh,f^a=fh,d^b=dh,f^c=fh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#21557, #6372913, C4×#3068, … |
| maximal normal subgroup of | C2×#21557, #6372913, C4×#3068, … |
| maximal quotient of | #211044, #211047, #211056, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 14545);