Mathematician and former Wonder Years actress Danica McKellar is featured in this month's Esquire as part of the feature "Women We Endorse." Writer A.J. Jacobs talks with McKellar about her favorite number, the probability of an Esquire reader getting a date with her, and other things not related to her best-selling books for girls about math. When asked if there are other "hidden celebrity geniuses" McKellar names Natalie Portman and Mayim Bialik of Blossom, and Jacobs suggests "you guys should do a calendar or something." [Esquire]