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BigMul Method

Math.BigMul Method

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

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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