A few students asked for a Sieve of Eratosthenes calculator. This will walk through each step of taking one prime number at a time using the Sieve of Eratosthenes algorithm, crossing off multiples of that prime number, and then generating a new list.
Shortcuts such as prime numbers less than 50 or sieve of eratosthenes less than 80 are accepted.
Sieve of Eratosthenes