perplexus.info :: Numbers : Subtle Summed Squares

Subtle Summed Squares (Posted on 2007-05-18)

Suppose a number N can be written as P times Q times R times..., where all of P, Q, R... can each be written as the sum of two perfect nonzero squares.

Show that in this case N itself can also be written as the sum of two perfect squares.

See The Solution Submitted by Old Original Oskar!

Rating: 5.0000 (1 votes)

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

re(2): Not so fast!

Comment 6 of 6 |

(In reply to re: Not so fast! by Jer)

Ah, thanks Jer. It only took me 10.5 years to get it.

Posted by Steve Herman on 2017-12-02 10:11:18

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