File: prime.c

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#include <stdio.h>

int main()
{
    int n, c;

    printf("Enter a number\n");
    scanf("%d", &n);
    printf("The number is: %d\n", n);

    if (n == 2)
        printf("Prime number.\n");
    else
    {
        for (c = 2; c <= n - 1; c++)
        {
            if (n % c == 0)
                break;
        }
        if (c != n)
            printf("Not prime.\n");
        else
            printf("Prime number.\n");
    }
    return 0;
}