Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #33551 |
| automorphism | Aut(G) = C2×#72236702 (order 2048) · Inn(G) = C2×B(4,𝔽2) · Out(G) = C24 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | C2×B(4,𝔽2) |
| commutator, Frattini, cosocle | C2×D4 | C24 |
| LCS | G ▷ C2×D4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C2×C4 ◁ C2×#41 ◁ G | |
| LECS | G ▷ C2×D4 ▷ C22 ▷ C2 ▷ C1 | |
573 conjugacy classes of subgroups; only the 109 normal subgroups are shown.
This group has 573 conjugacy classes of subgroups — too many to draw. Only its 109 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) = 32 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,13)(4,9)(5,10)(6,11)(7,12)(8,15)(14,27)(16,28)(17,23)(18,32)(19,25)(20,26)(21,29)(22,31)(24,30);(1,3)(2,8)(4,14)(5,18)(6,15)(7,16)(9,21)(10,24)(11,13)(12,22)(17,29)(19,30)(20,31)(23,27)(25,32)(26,28);(1,4,7,5)(2,9,12,10)(3,14,16,18)(6,19,20,17)(8,21,22,24)(11,23,26,25)(13,27,28,32)(15,30,31,29);(1,5,7,4)(2,10,12,9)(3,14,16,18)(6,19,20,17)(8,21,22,24)(11,25,26,23)(13,27,28,32)(15,29,31,30)Polycyclic presentation:
2^8|c^2=h,d^2=h,b^a=be,c^a=cf,g^a=gh,d^b=dh,f^b=fgh,e^c=eg,f^e=fh34 conjugacy classes — view the full character table.
| maximal subgroup of | #499823, #499824, #499825, … |
| maximal normal subgroup of | #499823, #499824, #499825, … |
| maximal quotient of | #484161, #484165, #484186, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26543);