JAVA Program to count the factors of a number

the school programmer


factor is a number that divides into another number exactly and without leaving a remainder. The number 60 has twelve factors:

1 2 3 4 5 6 10 12 15 20 30 60

If 60 is divided by any of the twelve factors then the answer will be a whole number.

For example:
60 ÷ 12 = 5
60 ÷ 15 = 4


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Steps to be followed for counting factors of a number.

  1. Input a number from user , let it be N.
  2. Declare a variable count=0;
  3. Now create a loop which starts from i=1 and ends at i<=N .
  4. In Loop if N%i==0  increase the value of count by 1
  5. Outside the loop print count.

Sounds Good ? Let's get started

CODE:

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/*
 * Author: TheSchoolProgrammer
 * www.theschoolprogrammer.com
 * Question:Write a program to accept a number and count and print number of factors of that number.
 */
import java.util.*;
public class factCount
{
public static void main()
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("ENTER A NUMBER");
        int n=sc.nextInt();
        int i,count=0;
        for(i=1;i<=n;i++)
        {
            if(n%i==0)
            count++; 
        }
        System.out.print("NUMBER OF FACTORS OF "+n+" IS "+count);
    }
}

Output:

Example 1
Input: 12
Output:NUMBER OF FACTORS OF 12 IS 6

Example 2
Input:60
Output:NUMBER OF FACTORS OF 60 IS 12




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