Depends on which one you use
If you’re putting together a direct mail piece, blog or post, here’s a tip. According to data from Venngage, the No. 10 garners the most shares, on average, across all four social networks: Facebook, Pinterest, LinkedIn and Twitter. The study examined the performance of 121,333 “listicle” articles/posts from brands and publishers. Other suggestions include using the No. 5, which had the second-most shares, followed by the No. 2. To note, listicle headlines that use a numeral (10) are better than ones that are written out (ten).