def check_prime(num):
    if num <= 1:
        print(f"{num} is not a prime number.")
    else:
        for i in range(2, num):
            if num % i == 0:
                print(f"{num} is not a prime number.")
                break
        else:
            print(f"{num} is a prime number.")

# Example usage:
number = int(input("Enter a number to check for prime: "))
check_prime(number)