Sunday Times Teaser 2832 – A New Year Reminiscence

by Victor Bryant

Published: 1 January 2017 (link)

Whilst filing away last year’s diary this morning I came across an old diary from my teenage years. In it I can see that in one particular month I went to four parties, three of them being on Saturdays and the other on a Sunday. I wrote down the four dates of the parties in words (in the format “January first” etc) and found that each of the dates used a different prime number of letters.

What were the four dates that I wrote down?