Tagged with 49

#math trivia #49 solution

#math trivia for #February18: #49 is the first composite that Eratosthenes sieves with a prime other than 2, 3 or 5. What’s the next one? — Burt Kaliski Jr. (@modulomathy) February 18, 2012 The Sieve of Eratosthenes is an ancient algorithm for separating prime numbers from composites.  Suppose we want to find all the primes … Continue reading