[Tutor] help with prime number program

[andrade1@umbc.edu]

>
>
>> I am trying to write a program that will figure out if a number is prime
>> or not. Currently this is the code that I have:
>
> [code cut]
>
> Hi Andrade1,
>
> As in your other previous homework programs, you seem to have some trouble
> with control flow.  Have you considered talking with your professor or
> teaching assistant about this?
>
>
>> import math
>>
>> def main():
>>     number=input("Please enter a positive whole number greater than 2:
>> ")
>>     for value in range(2, number-math.sqrt):
>>         if number % value == 0:
>>             print number, "is not prime"
>>             exit
>>     print number, "is prime"
>>
>> main()
>>
>> my problem is that the output prints both statements whether the number
>> is prime or not.
>
>
> The block of code:
>
> ######
>     for value in range(2, number-math.sqrt):
>         if number % value == 0:
>             print number, "is not prime"
>             exit
> ######
>
> has two issues.
>
>     1.  What is 'exit'?
instead of exit I can use break so that the loop will stop executing

>     2.  What is 'number - math.sqrt'?
for math.sqrt I could use math.sqrt(n) so that it would take the sqrt of n
which is entered in by the user


However for the output I am still receiving

enter a number greater than 2: 49
49 is prime
49 is prime
49 is prime
49 is prime
49 is prime
49 is not prime

> Instead of 'exit', you may be looking for the 'return' statement instead.
>
>
> Good luck to you.
>
>