A Homogeneous Date

May 5 of 1955 can be written as 5/5/55. How many times during the 20th century the date in the format month day and the last two digits of the year can be written with the same digit?

Share:Facebooktwittergoogle_plusredditpinterestlinkedinmail

3 Comments

  1. Kk:

    N.n.nn -9 dates, 11.1.11, 1.11.11, 11.11.11, 2.22.22.

  2. Andrew:

    Thirteen times. Four with only the digit 1, two with only the digit 2, and one each for the digits 3 through 9.

  3. Leif:

    I think there’s more – something like 6/9/96 is all written with the same digit (although I’ve had to turn the paper upside down occasionally).

Leave a comment