Is this u r looking 4? Code: #include <stdio.h> int is_prime(int number); int main(void) { int counter,limit; for (counter = 2; counter <= 100; counter++) { if (is_prime(counter)) printf("%d ", counter); } getch(); return 0; } int is_prime(int number) { int divisor; for (divisor = 2; divisor <= number / 2; divisor++) { if (number % divisor == 0) return 0; } return 1; }