Program to find whether a number is a prime or not

#include<stdio.h>
void main()
{
int i, prime = 1, n;
clrscr();
printf(“nnt ENTER A NUMBER…: “);
scanf(“%d”, &n);
for(i=2; i<n; i++)
{
if(n%i == 0)
{
prime = 0;
break;
}
}
if(prime)
printf(“nnt THE NUMBER %d IS A PRIME NUMBER”, n);
else
printf(“nnt THE NUMBER %d IS NOT A PRIME NUMBER”, n);
getch();
}

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Tagged as: C Program for prime numbers, prime numbers, Program for prime numbers