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This Rare Friday the 13th

Juha-Matti Laurio writes to point out a Washington Times story about how special this particular Friday the 13th is. The digits in the numerical notation for the date add up to 13 — whether you write it in the US or the European form. From the article: "The phenomenon hasn't happened in 476 years, said Heinrich Hemme, a physicist at Germany's University of Aachen who crunched the numbers to find that the double-whammy last occurred Jan. 13, 1520."

2 of 239 comments (clear)

  1. Re:-1, Who Cares by sgt_doom · · Score: 0, Troll

    Perhaps not to you but Jan. 13, 1520 was the date of Johann Gutenberg's last solid crap....not something to be taken lightly, historically speaking that is....

  2. Re:Commutivity by roman_mir · · Score: 0, Troll

    1520 + 476 = 1996 - now that is +5 Interesting.

    Also, from the +5 Interesting department:

    1111 + 2222 = 3333
    1010 + 101 = 1111

    and not to forget the classics

    7 * 6 = 42