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anonymous
 5 years ago
Im on lecture 2 and cannot figure out how to separate odd numbers and prime numbers! I figured out how to generate odd numbers here
http://dpaste.com/535600/
How do I get primes out of that?
anonymous
 5 years ago
Im on lecture 2 and cannot figure out how to separate odd numbers and prime numbers! I figured out how to generate odd numbers here http://dpaste.com/535600/ How do I get primes out of that?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Is there a specific interval of numbers that you want?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you want to put another loop in between line 6 and line 7 and it should be indented to the same level as line 6. that inner loop needs to test the number to see if it is prime

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the new loop will be 'nested' 'inside' the 'outer' loop (the while loop)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How do I test it to see if it is a prime? Do I have to divide it by a number, etc lol im lost

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0A prime number evenly divides by itself and 1 ONLY. So n/n=1 & n/1=n. Both of these have remainder of 0. If n divided by any integer between 1 and n has a remainder of 0, then n is NOT prime. Use the modulus (%) operation to find if a number has a remainder. Ex. n=15. 15%2=1 (15/2= 7 with remainder of 1). 15%3=0 (15/3= 5 with remainder of 0). So since there is at least 1 divisor (besides 1 & 15), in this case, 3, that returns 0, then 15 is not a prime.

carlsmith
 5 years ago
Best ResponseYou've already chosen the best response.0http://openstudy.com/updates/4db29a8764cb8b0b773f606e?source=email#/updates/4db692e6c08f8b0b3ee131c3 Check this question, it covers the same problem, there's a link to some working code that doesn't use imports or lists etc.. You might find what you need in there.

carlsmith
 5 years ago
Best ResponseYou've already chosen the best response.0That link doesn't seem to work, should do? Erm, just go to the list of questions and it is currently the one at the very top. The title is grupiyati: help with p1 anyone

carlsmith
 5 years ago
Best ResponseYou've already chosen the best response.0http://pastebin.com/KU0CXFx3 There's a solution here if you wanted one.

carlsmith
 5 years ago
Best ResponseYou've already chosen the best response.0https://gist.github.com/944461 This might help.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0def is_prime(number): if number < 2: return False for each in range(2, (number+2) / 2): if number % each == 0: return False return True tally, n = 0, 0 while tally < 1000: n += 1 if is_prime(n): tally += 1 print n # modified and perfected by cs
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