Program:

The source code to generate numbers that are multiples of 5 using the LINQ parallel query in C# is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//Program to generate numbers that are 
//multiples of 5 using LINQ parallel query.

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        IEnumerable<int> Numbers = ((ParallelQuery<int>)ParallelEnumerable.Range(1,30))
        .Where(num => num%5==0)
        .Select(val => val);

        foreach (int num in Numbers) 
        {
            Console.WriteLine(num); 
        }
    }
}

Output:

5
10
20
25
15
30
Press any key to continue . . .

Explanation:

In the above program, we created a Program class that contains the Main() method.

IEnumerable Numbers = ((ParallelQuery)ParallelEnumerable.Range(1,30))
.Where(num => num%5==0)
.Select(val => val);

Here we created integer numbers collection of IEnumerable type. Here we generated numbers that are multiples of 5. Then we printed the random numbers between the range 1 to 50 on the console screen.