# BigInteger.ModPow(BigInteger, BigInteger, BigInteger)BigInteger.ModPow(BigInteger, BigInteger, BigInteger)BigInteger.ModPow(BigInteger, BigInteger, BigInteger)BigInteger.ModPow(BigInteger, BigInteger, BigInteger) Method

## Definition

Performs modulus division on a number raised to the power of another number.

``````public:
static System::Numerics::BigInteger ModPow(System::Numerics::BigInteger value, System::Numerics::BigInteger exponent, System::Numerics::BigInteger modulus);``````
``public static System.Numerics.BigInteger ModPow (System.Numerics.BigInteger value, System.Numerics.BigInteger exponent, System.Numerics.BigInteger modulus);``
``static member ModPow : System.Numerics.BigInteger * System.Numerics.BigInteger * System.Numerics.BigInteger -> System.Numerics.BigInteger``
``Public Shared Function ModPow (value As BigInteger, exponent As BigInteger, modulus As BigInteger) As BigInteger``

#### Parameters

value
BigInteger BigInteger BigInteger BigInteger

The number to raise to the `exponent` power.

exponent
BigInteger BigInteger BigInteger BigInteger

The exponent to raise `value` by.

modulus
BigInteger BigInteger BigInteger BigInteger

The number by which to divide `value` raised to the `exponent` power.

#### Returns

The remainder after dividing `value`exponent by `modulus`.

#### Exceptions

`modulus` is zero.

`exponent` is negative.

## Examples

The following example provides a simple illustration of calling the ModPow method.

``````using System;
using System.Numerics;

public class Class1
{
public static void Main()
{
BigInteger number = 10;
int exponent = 3;
BigInteger modulus = 30;
Console.WriteLine("({0}^{1}) Mod {2} = {3}",
number, exponent, modulus,
BigInteger.ModPow(number, exponent, modulus));
}
}
// The example displays the following output:
//      (10^3) Mod 30 = 10
``````
``````Imports System.Numerics

Module Example
Public Sub Main()
Dim number As BigInteger = 10
Dim exponent As Integer = 3
Dim modulus As BigInteger = 30
Console.WriteLine("({0}^{1}) Mod {2} = {3}", _
number, exponent, modulus, _
BigInteger.ModPow(number, exponent, modulus))
End Sub
End Module
' The example displays the following output:
'       (10^3) Mod 30 = 10
``````

## Remarks

The ModPow method evaluates the following expression:

(baseValue ^ exponent) Mod modulus

To perform exponentiation on BigInteger values without modulus division, use the Pow method.