2020 Mathematics Calendar Hints
Thank you for your interest in
Mathematics 2020, Your Daily Epsilon of Math
if you have any questions or comments. Thanks!
This hint page will be built up as people ask for hints.
Rebecca Rapoport and Dean Chung
January 1, 2020
Hint: For some of the problems, we figure you’ll look up a term mentioned in the problem and learn something new. For example, for January 1, you could google "prime-counting function" and go to
which will help you solve the problem.
January 3, 2020
Hint: The "..." means "and so on" in math. The problem contains continued fractions with alternating 8 and 9’s. You can
learn more about continued fractions here
January 8, 2020
Hint: There is only one possible digit A can be. Otherwise the result of the multiplication would have 7 digits instead of 6.