number = int(input("Enter a number: "))
flag = False 
if number == 1: print(number, 'is not a prime number') 
elif number > 1:

    for num in range(2, number):
        if (number % num) == 0:

         
             flag = True


if flag:
    print(number, "is not a prime number")
else:
    print(number, "is a prime number")