Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24274 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
370 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,6)(4,5)(7,8)(9,10)(11,13)(12,14)(15,16)(17,18,23,28,22,27,21,26)(19,29,30,32,20,24,31,25);(2,5)(6,8)(9,11,12,15)(10,13,14,16)(17,19,23,30,22,20,21,31)(18,24,28,25,27,29,26,32);(1,3,4,7)(2,6,5,8)(10,14)(13,16)(17,20)(18,25)(19,22)(21,31)(23,30)(24,28)(26,29)(27,32);(2,5)(6,8)(17,21,22,23)(18,26,27,28)(19,30,20,31)(24,25,29,32)Polycyclic presentation:
2^8|a^2=g,b^2=fh,c^2=eh,d^2=h,f^2=h,g^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,d^b=dh,f^c=fh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27726, #6457081, #6457087, … |
| maximal normal subgroup of | C2×#27726, #6457081, #6457087, … |
| maximal quotient of | #360356, #361371, #366386, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20714);