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Asked a question 10 months ago

How do I recreate the sieve of Eratosthenes activity shared on Facebook on August 20? I am looking for the "select all multiples" button specifically.

Where am I?

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David Poras
Head of Content, MS Math Teacher

Hi Tina! You double-click on a number in the grid to have the "Select All Multiples" button appear at the bottom. Learn more here: https://mathigon.org/task/tutorial-numbers29. Hope this helps!