N4c – Prime numbers and prime factorisation

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Prime numbers and prime factorisation

With thanks to Frances, whose Criba d’Erastòstenes worksheet is available here. Material modified and embedded here under the CC-BY-SA 3.0 license.
Teacher resources

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  • Slides in PDF (one slide per page, suitable for importing into IWB software)
Links to past exam and UKMT questions

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Unlimited practice questions on prime factor decomposition
In the real world

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