For those who wonder like I did why the probability of picking a square-free number is 6/Pi^2, it's explained on wikipedia: https://en.wikipedia.org/wiki/Square-free_integer#Distributi...
For those who wonder like I did why the probability of picking a square-free number is 6/Pi^2, it's explained on wikipedia: https://en.wikipedia.org/wiki/Square-free_integer#Distributi...