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Sieve of Eratosthenes

math Maturity 7-9

You can find special numbers.

Animation Sieve of Eratosth.gif
Animation Sieve of Eratosth.gif
We use a list of numbers. We cross out the ones we do not need. This helps us find the special ones. It is like using a sieve. Can you find them too?

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File:Animation Sieve of Eratosth.gif
Animation Sieve of Eratosth.gif
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📚 Content adapted from Wikipedia | Readability: FK 11.2 | Vital Level 5