Why n%s=0 is not working in this go program?

Question

I wrote this go program as a solutiin to a code coach question. When I am typing n%s=0 in the if statement is giving an error. But when I am writing it as n%s<1 then it is accepting it
https://code.sololearn.com/c40RQzOj7DY0/?ref=app
Please help me understand

Answer 1

Right thanks