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#mmynoetherawards #mathematics #euler What is modular arithmetic? How can you calculate the last digits of huge numbers? How are your passwords encrypted? Learn about all this and more with Euler's Phi function, the most important function in number theory! Link to the video with the proof of Euler's theorem, from the Michael Penn channel (check out the channel, it has some great videos and is one of my favorites): • Number Theory Euler's Theorem Proof