perplexus.info :: Just Math : Some Powers Sum Square

Some Powers Sum Square (Posted on 2008-07-04)

Determine all possible nonnegative integer(s) P such that 2^2P+1 + 2^P + 1 is a perfect square.

See The Solution Submitted by K Sengupta

Rating: 2.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: A084703

| Comment 4 of 10 |

(In reply to A084703 by xdog)

If p is set to 144, then KS's formula becomes 994646472819573284310764496293641680200912323895440633411551095322037266673428257046529

which is not a perfect square, as its square root is

31538016310788687337230666626187271461550815.1092460195773449832

Posted by Charlie on 2008-07-04 23:13:56

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info