Welcome to the new year! As usual, here’s some trivia about the number 2013.

2013 starts a sequence of years with interesting factorizations — factorizations with all primes less than 100. These are numbers for which it is easy to write interesting problems, and the next few years should give plenty of those.

In other news, 2013 is the first year since 1987 consisting of four distinct digits. It’s also the first new year we’ve entered since a whole year ago… and that’s a cause for celebration, and possibly alarm and concern.

Have more trivia about 2013? Please comment and let me know!

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Objection, the new year starts Sunday February 10th.