Java Primality Test
Problem Statement :
A prime number is a natural number greater than 1 whose only positive divisors are 1 and itself. For example, the first six prime numbers are 2, 3, 5, 7, 11, and 13. Given a large integer, n, use the Java BigInteger class' isProbablePrime method to determine and print whether it's prime or not prime. Input Format A single line containing an integer, (the number to be checked). Constraints n contains at most 100 digits. Output Format If n is a prime number, print prime; otherwise, print not prime.
Solution :
Solution in C :
import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
BigInteger n = in.nextBigInteger();
in.close();
if(n.isProbablePrime(1)){
System.out.println("prime");
}
else{
System.out.println("not prime");
}
}
}
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