Java.math.BigInteger.valueOf() Method



The java.math.BigInteger.valueOf(long val) returns a BigInteger whose value is equal to that of the specified long. This "static factory method" is provided in preference to a (long) constructor because it allows for reuse of frequently used BigIntegers.


Following is the declaration for java.math.BigInteger.valueOf() method

public static BigInteger valueOf(long val)


  • val - value of the BigInteger to return

Return Value

This method returns a BigInteger with the specified value.


  • NA


The following example shows the usage of math.BigInteger.valueOf() method

package com.tutorialspoint;

import java.math.*;

public class BigIntegerDemo {

public static void main(String[] args) {

	// create a BigInteger object
	BigInteger bi;

	// create and assign value to Long object
	Long l = new Long(123456789L);

	// assign the biginteger value of l to bi
        // static method is called using class name
	bi = BigInteger.valueOf(l);

	String str = "BigIntger value of Long " + l + " is " +bi;

	// print bi value
	System.out.println( str );

Let us compile and run the above program, this will produce the following result:

BigIntger value of Long 123456789 is 123456789