Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #20022 |
| 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 | C2×D4 | C2×D4 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
285 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(2,6)(4,12)(7,15)(8,13)(9,16)(10,14)(17,18,21,25)(19,22,26,30)(20,23,28,24)(27,31,32,29);(1,2,5,8)(3,9,11,15)(4,13,12,6)(7,14,16,10)(17,19)(18,22)(20,27)(21,26)(23,31)(24,29)(25,30)(28,32);(18,23)(19,26)(20,28)(22,29)(24,25)(30,31);(1,3,5,11)(2,7,8,16)(4,14,12,10)(6,15,13,9)Polycyclic presentation:
2^8|a^2=h,b^2=g,d^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,c^b=ch,d^b=de,e^b=eg,f^c=fh,e^d=eg37 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#20047, #6359378, #6359432, … |
| maximal normal subgroup of | C2×#20047, #6359378, #6359432, … |
| maximal quotient of | #222353, #222360, #222588, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13035);