Help me with this question 
Difference between en1 and en2, changed 52 character(s)
the question is very simple we just need to calculate total number of numbers which have exactly 4 divisors ↵
for ex 6, 8, 10

6--[1,2,3,6]↵
8--[1,2,4,8]↵
10--[1,2,5,10]↵
  these are all of the forms p^3 or p*q 
 but here n<=10^11

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English shrohit_007 2023-03-07 10:17:20 52
en1 English shrohit_007 2023-03-07 10:16:32 255 Initial revision (published)