Wednesday, 3 December 2014

A date to reckon with



           The dare 8.8.64, meaning August 8, 1964 is a very interesting date, because the product of the first two numbers equals the third. 

          Can you find the year of the twentieth century which gives the maximum dates of this kind?

Answer:    Let’s consider the year 1948. Forty eight has the following factors:

 24 and              2            i.e.                     24th of February
 4and                12          i.e.                      4th of December
12 and              4           i.e.                      12th of April
16and               3           i.e.                      16th of March
6and                 8            i.e.                      6th of August or
8and                 6            i.e.                       8th of June

            And giving six dates. The years 36, 48.60 and 72 each give six dates whereas the maximum number of such dates is given by the year 24 – seven occasions.

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