Question

hi, i am having trouble with problem 2 of ps1. I keep either getting wrong numbers or nothing. Can someone please help me. Thanks
This is what I have so far.
import math
answer=math.log(2)
primecount=0
candidate=1
while primecount<999:
candidate=candidate+2
divisor=3
not_prime = False
while (divisor 15 years ago

Answer 1

sorry it didn't post the bottom but it ends with
primecount= primecount 1
print answer

Answer 2

Were you able to do Problem 1? You only need to make some very minor changes to the solution for problem 1 to get it to solve problem 2. I'd reccomend starting with problem 1 and modifying it to solve problem 2. If you want some tips, copy and paste your problem 1 solution and I or somebody else here may be able to advise you.

Answer 3

this is my solution to problem 1, I would appreciate any help with problem 2.
primecount=0
candidate=1
while primecount<999:
candidate=candidate+2
divisor=3
not_prime = False
while (divisor<candidate/2) and (not_prime == False):
if candidate%divisor == 0:
not_prime = True
divisor = divisor+2
if not_prime == False:
primecount= primecount+1

print candidate

Answer 4

Okay, I see what you've changed between the two.


Get rid of the "while primecount<998 and not_prime == False:" at the end.

Move "answer= answer + math.log(candidate)" into the last if statement. It should work then.

Answer 5

thanks, got it working