3 is a prime, 5 is a prime, and 7 is a prime. Why bother with non-prime numbers when the primes can do everything? — William of Ockham Copy Share Image
“For example, to a mathematician, the number 28 is really 2×2×7, which is known as the prime decomposition of 28. Prime numbers are, in a way, the atoms of maths, the components that make up all other numbers. The non-prime… — Matt Parker Copy Share Image
