Haskell Question

Make a function factors which returns the factors of a given integer. Use a list comprehension in your code.

Make a function isPrime which is true if a given integer > 1 is a prime number, false otherwise.

Make a function primeFactors which returns the factors of an integer which are prime numbers. Use the filter function.

Example output:

> factors 30

[2,3,5,6,10,15,30]

> isPrime 30

False

> primeFactors 30

[2,3,5]

Thanks