Write a method isprime that determines whether or not a numb
     Write a method is_prime that determines whether or not a number is prime. Prime numbers can only be evenly divided by 1 and themselves. For simplicity you can assume that \'n >= 2\'. 
  
  Solution
## definition for is_prime
 def is_prime(n):
 if n>= 2:
 for i in range(2,n): ## looping upto
 if not ( n % i ): ## divided by 1 and themselves
 print(\" Not Prime number\");
 else:
 print(\" Not Prime number\");
 print(\"Prime number\");
  
 ##print(is_prime(3));
******************* output*************
>>> is_prime(7)
 Prime number
 >>> is_prime(3)
 Prime number
 >>> is_prime(2)
 Prime number
 >>>

