-A number that only divisible by the 1 or by itself is known as prime number.
Not prime numbers:
-Here we make a function that are able to check the prime number.
#include < stdio.h>
int primecheck(int n)
-In this program, we make a function named as checkprime(int n), we pass an argument which is nothing but an given number.
-So when we pass a number to that function then it try to check the prime or not.
-If number is prime then function will return 1 otherwise it will return 0.