def check_prime():
    num = int(input("Enter a number: "))
    if num < 2:
        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")
                return
        print(f"{num} is a prime number")

check_prime()