Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19072 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#120 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
440 conjugacy classes of subgroups; only the 115 normal subgroups are shown.
This group has 440 conjugacy classes of subgroups — too many to draw. Only its 115 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(2,7)(3,11)(4,5)(9,10)(12,13)(14,15)(17,18,23,20)(19,27,30,32)(21,26,22,25)(24,31,28,29);(1,2)(3,8)(4,9)(5,7)(6,10)(11,15)(12,14)(13,16)(17,19)(18,24)(20,28)(21,29)(22,31)(23,30)(25,27)(26,32);(1,3,6,13)(2,8,10,16)(4,11,5,12)(7,14,9,15)(17,20,23,18)(19,28,30,24)(21,25,22,26)(27,31,32,29);(1,4,6,5)(2,9,10,7)(3,12,13,11)(8,14,16,15)(17,21,23,22)(18,25,20,26)(19,29,30,31)(24,27,28,32)Polycyclic presentation:
2^8|a^2=h,c^2=g,d^2=g,e^2=g,f^2=gh,b^a=be,c^a=cf,d^a=dg,e^a=eg,f^a=fgh,e^b=eg,f^b=fh,d^c=dg,e^c=eh,f^c=fgh40 conjugacy classes — view the full character table.
| maximal subgroup of | #249728, #249737, #249740, … |
| maximal normal subgroup of | #249728, #249737, #249740, … |
| maximal quotient of | #168126, #168131, #168136, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 12069);