Java 2ms solution, easy to understand


  • 1
    L

    public class Solution {
    public boolean isUgly(int num) {
    if(num<=0) return false;
    if(num==1) return true;
    while(num>1){
    if(num%2==0)num = num/2;
    else if(num%3==0)num = num/3;
    else if(num%5==0)num = num/5;
    else return false;
    }
    return true;
    }
    }


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