Burt Kaliski Jr. (@modulomathy) 3/9/12 7:52 AM #math trivia for #March9: #69 can be expressed as the sum of three primes many ways, incl. 23+23+23. What are the other ways? The primes must all be odd, because 2+2 would have to be added to 65, which is not prime. The largest of the primes must … Continue reading