Leetcode 263. ugly number

Their thinking

Respectively for 2,3,5 Doing modular operations ;
This problem can also be iterated 、 Hand it over and do it

C++ Code

class Solution {
    
public:
    bool isUgly(int n) {
    
        if (n!=0)
        {
    
            while( n%2 == 0 ) n/=2;
            while( n%3 == 0 ) n/=3;
            while( n%5 == 0 ) n/=5;
            if (n!=1) return 0;
            else return 1;
        }
        return 0;
    }
};