Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D4×#120 |
| automorphism | Aut(G) order 524288 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C2×#127 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1245 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(2,4)(5,6)(7,8)(9,11)(10,12);(5,7,9,12)(6,10,11,8)(13,14,18,16)(15,20,17,19);(1,2,3,4)(6,11)(7,12)(13,15,18,17)(14,19,16,20);(5,6)(7,10)(8,12)(9,11)(13,16,18,14)(15,19,17,20);(5,8,9,10)(6,7,11,12)(13,17,18,15)(14,20,16,19)Polycyclic presentation:
2^8|b^2=h,c^2=gh,d^2=fh,e^2=h,b^a=bf,c^a=cg,c^b=ch,e^b=eh,d^c=dh,e^d=eh70 conjugacy classes — view the full character table.
| maximal subgroup of | #98234, #98241, #130944, … |
| maximal normal subgroup of | #98234, #98241, #130944, … |
| maximal quotient of | #519068, #519233, C4⋊C4×#127, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 29547);