number = int(input("Enter a number: "))

flag = False

if number == 1:
    print(number, "is not a prime number")
elif number > 1:
    
    for n in range(2, number):
        if (number % n) == 0:
   
            flag = True
          
    if flag:
        print(number, "is not a prime number")
    else:
        print(number, "is a prime number")