java.math.BigInteger.probablePrime(int bitLength, Random rnd)

Description Of BigInteger: probablePrime(int bitLength, Random rnd)

The java.math.BigInteger.probablePrime(int bitLength, Random rnd) returns a positive BigInteger that is probably prime, with the specified bitLength. The probability that a BigInteger returned by this method is composite does not exceed 2^-100

BigInteger.probablePrime(int bitLength, Random rnd) method returns a BigInteger of bitLength bits that is probably prime

Code Example Java BigInteger

import java.math.BigInteger;
import java.util.Random;

public class BigIntegerExam {
 public static void main(String[] args) {
  int bitLength = 3;

  // create a random object
  Random rnd = new Random();

  BigInteger bi = BigInteger.probablePrime(bitLength, rnd);

  System.out.println(bi);
 }
}