Big Integer (java.math)

BigInteger class is used for mathematical operation which involves very big integer calculations that are outside the limit of all available primitive data types.

Instantiate

BigInteger A = new BigInteger();

BigInteger A;

A = BigInteger.valueOf(Number);

Methods

BigInteger A, B, C;

• Arthimetic

  C = A.add(B);

  C = A.substract(B);

  C = A.multiply(B);

  C = A.divide(B);

  C = A.remainder(B);

• compareTo() - returns -1, 0, 1

  int n = A.compareTo(B);

• equals() - returns -1, 0, 1

  int n = A.equals(B);

• isProbablePrime() - returns true/ false if nummber is prime

  A.isProbabalePrime(1);

• gcd() - returns gcd of 2 numbers

  C = A.gcd(B);

• intValue() - conversion BigInter to value

  int x = A.intValue();