Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23918 |
| 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 | C24 | C2×D4 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
363 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)(3,7)(4,5)(6,8)(9,10,12,14)(11,13,15,16)(17,18)(19,26)(20,28)(21,25)(22,23)(24,27)(29,32)(30,31);(2,5)(6,7)(9,11)(10,13)(12,15)(14,16)(17,19,21,22)(18,23,25,26)(20,27,29,30)(24,28,31,32);(11,15)(13,16)(17,20,21,29)(18,24,25,31)(19,27,22,30)(23,28,26,32);(1,3,4,8)(2,6,5,7)(18,25)(23,26)(24,31)(28,32)Polycyclic presentation:
2^8|a^2=g,b^2=h,c^2=h,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,f^c=fh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27635, #6458617, #6458628, … |
| maximal normal subgroup of | C2×#27635, #6458617, #6458628, … |
| maximal quotient of | #360014, #363364, #366428, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20623);