Graphic
Curated OER

Clip Art by Phillip Martin: Prime and Composite Numbers

For Students 3rd - 8th
A clipart illustration by Phillip Martin titled "Prime and Composite Numbers."
Graphic
Curated OER

University of St. Andrews: Marin Mersenne

For Students 9th - 10th
Even though his equation to determine all prime numbers did not succeed, it did help the investigation of large prime numbers.

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