What is Prime Number?
A prime number is a number that is greater than 1 and can be divided only by 1 and itself.
For ex. 3, 5, 7… are prime numbers.
why?
- Because they are greater than 1 And
- They can be divided only by 1 and itself.
But, 4,6,8,….are not prime numbers, because they don’t follow the two rules given above.
How to find a Prime Number in C#?
public static bool IsPrimeNumber(int number)
{
int i;
for (i = 2; i < number; i++)
{
if (number % i == 0)
return false;
}
return (i == number);
}
Done..!!