Jump to content
BrainDen.com - Brain Teasers
  • 0


Guest
 Share

Question

it is provable that: if you take all the prime numbers up to n raised to any power, split them into two groups, multiply, and subtract the smaller product from the larger; if the result is less than (n+1)^2, then its prime.

what's the likelyhood of the result being prime when its between (n+1)^2 and 2*(n+1)^2?

(to put it another way, how many composite numbers are between (n+1)^2 and 2*(n+1)^2 and not evenly divisible by any number less than n?)

Link to comment
Share on other sites

0 answers to this question

Recommended Posts

There have been no answers to this question yet

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...