BigInteger Class in C#

Use the BigInteger to handle big numbers in C#. The assembly to add for BigInteger is System. Numerics.

In c# Big integer is found in System.Numerics.BigInteger.

Syntax

The syntax of BigInteger −

[SerializableAttribute]
public struct BigInteger : IFormattable, IComparable, IComparable<BigInteger>, IEquatable<BigInteger>

Let us see an example code snippet −

BigInteger num = BigInteger.Multiply(Int64.MaxValue, Int64.MaxValue);

You can create BigInteger like this −

BigInteger num = new BigInteger(double.MaxValue);

The following are some of its constructors −