MIT 6.00 Assignments solutions

ps1b.py

'''
Problem 1 b

Write a program that computes the sum of the logarithms of all the primes from 2 to some
number n, and print out the sum of the logs of the primes, the number n, and the ratio of these
two quantities. Test this for different values of n.
You should be able to make only some small changes to your solution to Problem 1 to solve this
problem as well. 
'''

from math import log

def product(n):
	sum = 0.0
	for i in range(2,n):
		if is_prime(i): # see ps1a.py
			sum += log(i)
	print sum, n, sum/n
    
product(100)