Are prime numbers sponsored by Amazon Prime? What do maths have to do with secure online messages and cicadas? How can I win $250,000 using maths?

It's time to go back to elementary maths class and study the fundamental building blocks of numbers, while learning about how the weird and cool properties of prime numbers can be super useful! Turns out, maths CAN be fun.

Numberphile - Lucas-Lehmer Primality Test
Numberphile - Euclid's Theorem

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