# Finds the greatest common divisor of two BigInteger values. : BigInteger « Data Types « C# / C Sharp

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Finds the greatest common divisor of two BigInteger values.
 ```  using System; using System.Numerics; public class Example {    public static void Main()    {         BigInteger n1 = BigInteger.Pow(9999999999, 3);         BigInteger n2 = BigInteger.Multiply(9999999999, 99999999);         try         {            Console.WriteLine("The greatest common divisor of {0} and {1} is {2}.",                               n1, n2, BigInteger.GreatestCommonDivisor(n1, n2));         }         catch (ArgumentOutOfRangeException e)         {            Console.WriteLine("Unable to calculate the greatest common divisor:");            Console.WriteLine("   {0} is an invalid value for {1}",                               e.ActualValue, e.ParamName);         }    } }       ```
Related examples in the same category
 1 Create BigInteger using the values in a byte array. 2 Instantiate BigInteger values 3 Initializes a new instance of the BigInteger structure using a Decimal value. 4 Divides one BigInteger value by another, returns the result, and returns the remainder in an output parameter. 5 Increments a BigInteger value by 1. 6 Shifts a BigInteger value a specified number of bits to the left. 7 Returns the natural (base e) logarithm of a specified number. 8 Returns the larger of two BigInteger values. 9 Returns the smaller of two BigInteger values. 10 Performs modulus division on a number raised to the power of another number. 11 Converts the string representation of a number to its BigInteger equivalent. 12 Converts string in a specified culture-specific format to BigInteger 13 NumberFormatInfo and BigIntegerParse 14 Converts string in a specified style to BigInteger 15 NumberStyles and BigInteger parse 16 Raises a BigInteger value to the power of a specified value. 17 Performs integer division on two BigInteger values and returns the remainder. 18 Converts a BigInteger value to a byte array. 19 Converts BigInteger to string using the specified culture-specific formatting information. 20 Converts BigInteger to string using the specified format. 21 Converts BigInteger to string using culture-specific format information. 22 Converts BigInteger to string with ToString method 23 Tries to convert string to BigInteger 24 Tries to convert string in style and culture-specific format to BigInteger 25 NumberStyles and TryParse 26 Negates a specified BigInteger value. 27 Defines an explicit conversion of a BigInteger object to an unsigned byte value.