Math.BigMul Method (Int32, Int32)


The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

Produces the full product of two 32-bit numbers.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public static long BigMul(
	int a,
	int b


Type: System.Int32

The first number to multiply.

Type: System.Int32

The second number to multiply.

Return Value

Type: System.Int64

The number containing the product of the specified numbers.

The following example demonstrates the use of the BigMul method to calculate the product of two integer values.

// This example demonstrates Math.BigMul()
using System;

class Sample 
    public static void Main() 
    int int1 = Int32.MaxValue;
    int int2 = Int32.MaxValue;
    long longResult;
    longResult = Math.BigMul(int1, int2);
    Console.WriteLine("Calculate the product of two Int32 values:");
    Console.WriteLine("{0} * {1} = {2}", int1, int2, longResult);
This example produces the following results:
Calculate the product of two Int32 values:
2147483647 * 2147483647 = 4611686014132420609

.NET Framework
Available since 1.1
Return to top