For centuries, mathematicians have been captivated by the mystery of prime numbers. Their effort to decipher that mystery has focused on the most abstract mathematics concepts and techniques known. Yet still they have no answers. Others, frustrated by the nature of earlier attempts, have suggested the primes can be counted by a much simpler method using calculations that involve the numbers that are not prime-identifying and removing them until only prime numbers remain.

In Observations Regarding Non-Prime Odd Numbers, New York Times bestselling author Joe Hilley examines non-prime numbers in an attempt to gain clues about the nature of prime numbers, their propagation, and occurrence. Informative, readable, and entertaining, Joe provides clues you won't find anywhere else and surprising insights sure to generate lively debate.