If a circle is centered on the origin and has radius r, it may pass through some points with integer coordinates. In fact, by symmetry, this will be a multiple of 4.

Find the smallest radius that will pass through 4n integer points where n=1,2,3,4,5.

Feel free to go further.

(In reply to n = 2 by Steve Herman)

Steve

You just did not understand my notation , showing correspondance

between  serial unteger n and related radii.

Take amother look..

 

 

Posted by Ady TZIDON on 2011-03-01 09:09:29