Math Forum http://mathforum.org/kb List of forum topics en Re: Prove K^2 mod 4 = 1 http://mathforum.org/kb/thread.jspa?messageID=8023862&tstart=0#8023862 Let k = 2n + 1 where n is an integer (in Z).
Then k^2 = (2n + 1)^2 = 4n^2 + 4n + 1 = 4(n^2 +]]> Jan 9, 2013 12:28:58 AM Jan 23, 2013 4:51:24 PM johnykeets 0 Re: Prove K^2 mod 4 = 1 http://mathforum.org/kb/thread.jspa?messageID=7942564&tstart=0#7942564 ]]> Dec 22, 2012 7:45:09 AM Dec 22, 2012 7:45:09 AM GuyinMississippi 0 Prove K^2 mod 4 = 1 http://mathforum.org/kb/thread.jspa?messageID=7936890&tstart=0#7936890
Can someone let me know if this is correct?

"k = 2n + 1. Then k^2 (is congruent to) 4n^2]]> Dec 14, 2012 7:04:00 PM Dec 14, 2012 7:04:00 PM brianmans 2