I need answer for this

Greatest common factor is 1
Note
Break down each expression and then look at the common terms...
[tex] \tt \: 9 = 1×3×3 \\ \sf \: 5 {b}^{3} = 1 \times 5\times b \times b \times b[/tex]
➪ The common factor is 1, Therefore their GCF is 1...