Deletion of New divisibility by 14 rule was found by Ethem Deynek, Turkish teacher;

Comment: per . I'd tag it for a #A11 speedy deletion, except for the part in A11 about credible claims of significance; divisibility tests can be useful, so I wouldn't want to claim that this is obviously and totally unimportant
Stance: delete
Cited policy: Wikipedia:Wikipedia is not for things made up one day (WP:NFT||WP:CSD)