Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #42996 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1134 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)(5,6,9,7)(8,10,12,11)(13,14)(15,18)(16,17)(19,20);(6,7)(10,11)(14,16)(15,19);(1,2)(3,4)(13,14,17,16)(15,20,19,18);(5,7,9,6)(8,11,12,10)(13,15,17,19)(14,18,16,20);(5,8,9,12)(6,10,7,11)(13,16,17,14)(15,20,19,18)Polycyclic presentation:
2^8|a^2=fh,c^2=h,d^2=f,e^2=f,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 | C2×#44457, #7669036, #7669056, … |
| maximal normal subgroup of | C2×#44457, #7669036, #7669056, … |
| maximal quotient of | #535362, #535669, #536029, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 37445);