HackerRank Java- Primality Test




Given a large integer, n, use the Java BigInteger class' isProbablePrime method to determine and print whether it's prime or not prime.



  1. import java.io.*;
  2. import java.math.*;
  3. import java.security.*;
  4. import java.text.*;
  5. import java.util.*;
  6. import java.util.concurrent.*;
  7. import java.util.regex.*;
  8. public class Solution {
  9. public static void main(String[] args) {
  10. Scanner sc = new Scanner(System.in);
  11. BigInteger n = sc.nextBigInteger();
  12. sc.close();
  13. System.out.println(n.isProbablePrime(10) ? "prime" : "not prime");
  14. }
  15. }




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