What does the theory of prime numbers have to do with the prime lending rate of the Royal bank of Canada? Turns out it’s pretty hot to this week's guests. The manager of a Montreal bank named Claude Leburn and math professor Grace Albion. Grace has been counting since birth and yet the amount of times a man has touched her equals zero. Claude on the other hand may or may not be bankrolling Putin. Find out more than you ever wanted to know about the history of Canadian banks and if there’s a prime number for love. (Hint: The number is 30,001).   Guest starting: Allison Louie and Rick Ferguson