perplexus.info :: Just Math : Prime and Twice Square

Prime and Twice Square (Posted on 2016-10-22)

Determine all possible values of a prime number P such that each of P+1 and P² + 1 is twice a perfect square.

Prove that these are the only ones.

No Solution Yet Submitted by K Sengupta

Rating: 3.5000 (2 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Possible solution.	broll	2016-10-23 22:37:56
re: A solution	Charlie	2016-10-22 15:54:41
re: A solution................all possible values?	Ady TZIDON	2016-10-22 13:21:21
A solution	Math Man	2016-10-22 11:49:50

Please log in:

Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (5)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info