Sum of every prime number below n

Created on Jan. 16, 2017 by Julien Palard

Write a sum_primes function returning the sum of every prime number strictly inferior to its single parameter.

Example

1
2
>>> sum_primes(10)
17

Advice

You may copy/paste your is_prime function from a previous exercise ;)

  • There's no corrections yet, hit the `Submit` button to send your code to the correction bot.
  • Keyboard shortcuts:
    • Ctrl-Enter: Send your code to the correction bot.
    • Escape: Get back to the instructions tab.
(Ctrl-Enter)