Prime Numbers

Links verified on 8/5/09

1. Composite and Prime numbers - You decide which it is.
2. Eratosthenes Sieve - A JavaScript that shows the sieve of Eratosthenes. The sieve marks the primes in green and the composites in red.
3. Number Cop - Select Primes, click on Start then use the left and right arrows to move the police car to intercept only prime numbers.
4. Prime and Composite Numbers - List the factors of numbers and identify which numbers are prime or composite. (an E-lab from Harcourt School Publishers)
5. Prime Factorization - interactive practice (multiple choice quiz)
6. Prime Numbers - Prime Number Sieve: "Remove all proper multiples of the next remaining number." Start with the number 2.When all proper multiples of all numbers in the first row are deleted, the table will contain only primes.
7. Spy Guys Interactive - Factors, Multiples, and Prime Factorization - watch the video and respond at various places Lesson 7