February is the only month that can sometimes form the perfect rectangle.
When it is not a leap year, February has 28 days. 28 is divisible by 7. Perfect for a rectangle.
To be a pretty rectangle, February 1st has to be on a Sunday. That will always make for a Friday 13th, for those who are superstitious.
No other month can ever make the perfect pretty rectangle that February has made in 2021 because 30 and 31 days are not divisible by 7. So you will always have extra days left over even when the 1st day is on a Sunday.
Perfect, pretty rectangular February's happen every 6 or 11 years.
No comments:
Post a Comment