Apply LWG motion 21, N4273, Uniform Container Erasure.

http://wiki.edg.com/twiki/bin/view/Wg21urbana-champaign/StrawPolls
Apply LWG motion 22, N4061, Greatest Common Divisor and Least Common Multiple.

http://wiki.edg.com/twiki/bin/view/Wg21urbana-champaign/StrawPolls