Square dates
Writing 30 May 2009 in the order day’s number.month.year, with just one digit for the month but the year in full, gives 30.5.2009. This is a perfect square date because 3052009 = 17472. If two digits are allocated for the month, then 3 May 2009 (3.05.2009) was a perfect square date.
If you maintain the order day’s number.month.year and write the year as a four-digit number, as in these examples, what is the next date that will be a perfect square (a) if you allocate one digit for the month, and (b) if you allocate two…
