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home / developersection / interviews / why use biginteger data type in c#?
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Ravi Vishwakarma
Ravi Vishwakarma

Software Developer

Hi, my self Ravi Vishwakarma. I have completed my studies at SPICBB Varanasi. now I completed MCA with 76% form Veer Bahadur Singh Purvanchal University Jaunpur. SWE @ MindStick | Software Engineer | Web Developer | .Net Developer | Web Developer | Backend Engineer | .NET Core Developer

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1 Answers

Ravi Vishwakarma
Ravi Vishwakarma 10 Jun 2024
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In C#, the BigInteger data type is part of the System.Numerics namespace and provides a way to represent arbitrarily large integers. This data type is useful when you need to perform arithmetic operations on numbers that exceed the range of built-in numeric types like int or long.

Here's a basic example of how to use BigInteger:

using System;
using System.Numerics;

namespace ConsoleApp1
{
    class Program
    {
        static void Main()
        {
            // Creating BigInteger instances
            BigInteger bigInt1 = BigInteger.Parse("174859685749667890");
            BigInteger bigInt2 = new BigInteger(8765432109876543210);

            // Performing arithmetic operations
            BigInteger sum = bigInt1 + bigInt2;
            BigInteger product = bigInt1 * bigInt2;

            // Displaying results
            Console.WriteLine("Sum: " + sum);
            Console.WriteLine("Product: " + product);
            Console.ReadLine();
        }
    }
}

In this example, BigInteger.Parse and the constructor new BigInteger() are used to create BigInteger instances from strings and long integers, respectively. Then, arithmetic operations like addition (+) and multiplication (*) are performed on these BigInteger objects. Finally, the results are displayed.

The BigInteger type provides methods for arithmetic operations such as Add, Subtract, Multiply, Divide, etc., just like other numeric types in C#.

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