Euler’s Phi Function Explained in 40 Seconds ⏱️ #MathShorts #NumberTheory #Crypto”

An 18th-century math trick is protecting your data right now… Leonhard Euler discovered the phi (totient) function almost 300 years ago. At the time, it was just a piece of pure number theory. Today, it’s the hidden backbone of RSA encryption—the very thing keeping your passwords, bank details, and private messages safe online. In just 60 seconds, see how a brilliant mathematical idea from the 1700s still powers the digital age. #Math #Shorts #Euler #NumberTheory #Cryptography #MathShorts #HistoryOfMath #Cybersecurity