# Talk:Sequence of primorial primes

## Python library

It looks like the isprime function from the library used in the Python example is no longer present in the new version. `is_probable_prime` is the new function. Danaj (talk) 03:28, 15 June 2015 (UTC)

- Can you give a link? --Paddy3118
- Ah, found it. It seems that isprime becomes is_prime in the later version. The link is to the earlier version so I won't hurry to update to the new library. --Paddy3118 (talk) 04:51, 15 June 2015 (UTC)

## Ring's Code Produced Error Message

I tried to run Ring code suggested in this page, copy-paste to file named primo.ring

# Project : Sequence of primorial primes max = 9999 primes = [] for n = 1 to max if isprime(n) = 1 add(primes, n) ok next for n = 1 to len(primes) sum = 1 for m = 1 to n sum = sum * primes[m] next if (isprime(sum+1) or isprime(sum-1)) = 1 see "" + n + " " ok next func isprime(num) if (num <= 1) return 0 ok if (num % 2 = 0) and num != 2 return 0 ok for i = 3 to floor(num / 2) -1 step 2 if (num % i = 0) return 0 ok next return 1

The code produced error message:

1 2 3 4 5 6 Line 22 Error (R18) : Numeric Overflow! In function isprime() in file primo.ring called from line 15 in file primo.ring

I used Ring version 1.10 to run the code.