<P> In mathematics, the sieve of Eratosthenes is a simple, ancient algorithm for finding all prime numbers up to any given limit . </P> <P> It does so by iteratively marking as composite (i.e., not prime) the multiples of each prime, starting with the first prime number, 2 . The multiples of a given prime are generated as a sequence of numbers starting from that prime, with constant difference between them that is equal to that prime . This is the sieve's key distinction from using trial division to sequentially test each candidate number for divisibility by each prime . </P>

Is there a way to find prime numbers