Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
514 conjugacy classes of subgroups; only the 133 normal subgroups are shown.
This group has 514 conjugacy classes of subgroups — too many to draw. Only its 133 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) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,4)(5,6,8,9)(7,11,12,10)(13,14,18,22)(15,19,25,28)(16,20,17,21)(23,26,24,27);(6,9)(10,11)(13,15,18,25)(14,19,22,28)(16,24,17,23)(20,27,21,26);(1,2,3,4)(15,23)(16,17)(19,26)(20,21)(24,25)(27,28);(5,7,8,12)(6,10,9,11)(13,16,18,17)(14,20,22,21)(15,24,25,23)(19,27,28,26)Polycyclic presentation:
2^8|a^2=eh,b^2=h,c^2=f,d^2=eh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,d^c=dh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #139235, #139295, #268055, … |
| maximal normal subgroup of | #139235, #139295, #268055, … |
| maximal quotient of | #295421, #295422, #295423, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18650);