C# Console Application

C# Program to Find Number of Prime Numbers Between Two Integers

In this program, you’ll learn to print all prime numbers within an interval using for loops and display it.

A positive integer greater than 1 which has no other factors except 1 and the number itself is called a prime number.




2, 3, 5, 7 etc. are prime numbers as they do not have any other factors. But 6 is not prime (it is composite) since, 2 x 3 = 6.

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