num = int(input('enter a number')) 

if num > 1: 

    for i in range(2, (num//2)+1): 
      if (num % i) == 0: 
        print(num, 'is not a prime number') 
        break 
    else: 
       print(num,  'is a prime number') 
else: 
    print(num,  'is not a prime number')