Instructor Brit Cruise has created two new videos and computer science programs as part of his Prime Adventures series, where he explores deeper properties of prime numbers through building algorithms that perform prime factorization and primality tests.

Level 4: Sieve of Eratosthenes

Try out the CS program that goes with “Level 4.”

Level 5: Primality test using the Sieve of Eratosthenes

Try out the CS program that goes with “Level 5.”