How do you write ln(n) in log form?

Question

I know that you can convert log of some base by doing ln of the variable over ln of the base, but I don't know how to do the opposite.

Answer 1

log₁₀(A)=ln(A)/ln(10)= ln(A)/2.303

The opposite:
ln(A)=2.303*Log₁₀(A)