Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #58990 |
| automorphism | Aut(G) order 65536 |
| 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 | C22×D4 | C23 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1048 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(6,10)(8,11)(13,14,18,15)(16,20,17,19);(2,4)(5,6)(7,11)(8,12)(9,10)(13,15,18,14)(16,19,17,20);(5,7,9,12)(6,11,10,8)(13,16,18,17)(14,19,15,20);(1,2,3,4)(13,17,18,16)(14,20,15,19);(5,8,9,11)(6,12,10,7)Polycyclic presentation:
2^8|a^2=g,b^2=g,c^2=fg,d^2=h,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | #7146483, #7146484, #7146485, … |
| maximal normal subgroup of | #7146483, #7146484, #7146485, … |
| maximal quotient of | #531809, #531847, #531902, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 52821);