# Find politeness of a number in java

Java Programming Java.Util PackageJava8

The numbers which can be expressed as the sum of positive consecutive integers are known as polite numbers.

Ex: 5 = 2+3

The number of ways a number can be expressed as the sum of positive integers will be the Politeness of that number.

Ex: 9 = 4+5 || 2+3+4

## Algorithm

• Get the prime factors of a number.
• Get the powers of prime factors greater than 2.
• Add 1 to all of them.
• Multiply them, subtract 1 from the result.

## Program

import java.util.Scanner;

public class PolitenessOfANumber {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a number");
int num = sc.nextInt();
int count = 0, result = 1;

for(int i = 2; i< num; i++) {
while(num%i == 0) {
System.out.println(i+" ");
num = num/i;
if(i>2) {
count ++;
}
result = result*(count+1);
}
if(num >2) {
System.out.println(num);
}
System.out.println("Politeness of the given number is : "+(result-1));
}
}
}

## Output

Enter a number
216
2
2
2
3
3
3
Politeness of the given number is : 3
Published on 04-Jun-2018 13:21:03