Talk:21 into 1/@comment-26924283-20150914183257/@comment-209.163.133.19-20150915185944

http://thepizzaisalie.wikia.com/wiki/Whiteboards?file=C2a4x_labboard4.jpg

"Tri-Reactant Synchrotron Particle Accelerator"

If you remove the spaces but keep the hyphen, you get a 42-character string. 42 is divisible by 21...