Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #47826 |
| 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 | |
1107 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)(5,6,10,12)(7,11,8,9)(14,16)(18,19);(5,7)(6,11)(8,10)(9,12)(13,14,17,16)(15,19,20,18);(1,2)(3,4)(6,12)(7,8);(5,8,10,7)(6,9,12,11)(13,15,17,20)(14,18,16,19);(5,9)(6,7)(8,12)(10,11)(13,16,17,14)(15,19,20,18)Polycyclic presentation:
2^8|a^2=h,b^2=f,d^2=fh,e^2=f,b^a=bf,c^a=cg,e^a=ef,c^b=ch,d^b=dfh,e^b=eh,d^c=dh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#50865, #7706722, #7706729, … |
| maximal normal subgroup of | C2×#50865, #7706722, #7706729, … |
| maximal quotient of | #560380, #560398, #561480, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 43853);