package isUgly263; /* * 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 14 is not ugly since it includes another prime fac…

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. Example 1: Input: 6 Output: true Explanation: 6 = 2 × 3 Example 2: Input: 8 Output: true Explanation: 8 = 2…

public bool IsUgly(int num) { if(num<1) return false; 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; }…

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 14 is not ugly since it includes another prime factor 7. Note that 1 is ty…

public class Solution { private bool Judge(int x) { ) { return false; } int bound = Convert.ToInt32(Math.Sqrt(x)); ; i <= bound; i++) { ) { return false; } } return true; } //素数筛法 private List<int> init(int num) { var prime = new List<int>(…

Ugly Number 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 14 is not ugly since it includes another prime factor 7. Note…