Burt Kaliski Jr. (@modulomathy) 3/26/12 8:55 AM #math trivia for #March26: #86 is two times a prime. How often does this happen in a leap year? (Including 2*2=4.) The equivalent question is, how many primes are between 1 and 183? This value is denoted π(183), the number of primes less than or equal to 183. … Continue reading