May 13, 2017 · Mark Manasse has a wonderful license plate that I learned about too late to include in my original article: His is IDIDF9, commemorating the successful factorization of the ninth Fermat …

Furthermore, all of the odd numbers attacked by that queen are prime—except the ‘1’, which some people think is prime. Furthermore, the exact date of my birth just happens to be present, along with …

1900.03.25 S317 explains something of Fermat-Gaussian factors, derives correct answer 5x5x13x17x29; three readers suggested 5x5x13x13x17x17, but he says this can be expressed in 13 …