PROGRAMMING:JMU Python prime

Enter a number to determine whether it is prime. Prime numbers are natural numbers greater than 1. There are no other factors except 1 and itself.
###Input format:
Enter an integer
###Output format:
Whether the output is prime.
###Input example:
```in
twelve
```
###Output example:
```out
12 is not prime
```
###Input example:
```in
seven
```
###Output example:
```out
7 is prime
```






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