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Question

I am using the following code to find the list of primes, but I also need to be able to find the product of the list created. I don't know where to start.

def list_of_primes(x):
    primes = [2, 3]

    n = primes[-1] + 2

    while len(primes) < x:
        for p in primes:
            if n % p == 0:
                break
        else:
            primes.append(n)

        n += 2

    return (primes)

Answer 1

You can either maintain a variable that stores the running product or do something like

reduce(operator.mul, primes)  # product of elements in `primes`

(using reduce with operator.mul )

Performance-wise, you shouldn't see a large gap between these two approaches for any reasonably sized list; you should use whichever makes more sense in the context of your program.