Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1665 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | #121 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
227 conjugacy classes of subgroups; only the 87 normal subgroups are shown.
This group has 227 conjugacy classes of subgroups — too many to draw. Only its 87 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 28 points:
(2,4)(5,6,9,10,8,11,7,12)(13,14)(15,20)(16,25)(17,27)(18,22)(19,23)(21,26)(24,28);(1,2,3,4)(6,10)(7,9)(11,12)(13,15,17,23,18,24,26,16)(14,19,21,20,22,25,27,28);(6,11)(10,12)(13,16,26,24,18,23,17,15)(14,20,27,19,22,28,21,25)Polycyclic presentation:
2^8|a^2=f,b^2=df,c^2=egh,d^2=gh,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eg,d^b=dh,f^b=fh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9737, #205174, #205176, … |
| maximal normal subgroup of | C2×#9737, #205174, #205176, … |
| maximal quotient of | #101999, #102013, #102221, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2725);