Sieve of Eratosthenes

Sieve of Eratosthenes Named after the Greek Mathematician. This classic method of finding prime numbers is also great for teaching about factors and multiples. The visnos sieve allows for multi colored squares this allows identification of any numbers prime factors.

GOT IT! – NRICH

GOT IT! – NRICH http://www.mathszone.co.uk/images/thumbimg-69l.jpg Add numbers to reach exactly the target number – before the other player or computer