HR자바 Java Primality Test

개요

HR자바 Java Primality Test

• https://www.hackerrank.com/challenges/java-primality-test/problem

해커랭크 Java

#	문제	비고
HR자바 BigNumber e
25	HR자바 Java BigDecimal
26	HR자바 Java Primality Test
27	HR자바 Java BigInteger

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Java

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import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;

public class Solution {
    private static final Scanner scanner = new Scanner(System.in);
    public static void main(String[] args) {
        String n = scanner.nextLine();
        scanner.close();
        BigInteger b = new BigInteger(n);
        if( b.isProbablePrime(10) ) {
            System.out.println("prime");
        }
        else {
            System.out.println("not prime");
        }
    }
}