Activity

Eratosthenes' Prime Number Sieve

Curated by ACT

Discover all the primes up to the number 400 by using this interactive table. Simply click on a number and its multiples disappear.

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CCSS: Adaptable
Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
  • This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information
Common Core