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Ugly Number

Ugly Number

作者: aemaeth | 来源:发表于2016-03-14 10:34 被阅读0次

Write a program to check whether a given number is an ugly number.
Ugly numbers are positive numbers whose prime factors only include 2, 3, 5
For example, 6, 8 are ugly while 14is not ugly since it includes another prime factor 7

Note :
That 1 is typically treated as an ugly number.

bool isUgly(int num) { for(int i=2;i<6&&num;i++){ while(num%i==0) num/=i; } return num==1; }

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