Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #42996 |
| automorphism | Aut(G) order 131072 |
| 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×#550 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1249 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)(7,11)(8,9)(10,12)(14,17)(18,19);(5,6)(7,11)(8,9)(10,12)(13,14)(15,19)(16,17)(18,20);(1,2,3,4)(6,9)(10,11);(5,6)(7,10)(8,9)(11,12)(13,15,16,20)(14,18,17,19);(5,7,8,12)(6,10,9,11)Polycyclic presentation:
2^8|c^2=gh,d^2=f,e^2=h,b^a=bf,c^a=cg,e^a=eh,c^b=ch,d^b=df,e^b=eh,d^c=dh58 conjugacy classes — view the full character table.
| maximal subgroup of | #130638, #130642, #245716, … |
| maximal normal subgroup of | #130638, #130642, #245716, … |
| maximal quotient of | #535411, #535419, #536075, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 38342);