Every Unsolved Number Problem That Sounds Easy

Add one. Cut in half. Repeat. The simplest rule imaginable — and nobody can prove it always lands on one. This video walks through seven number theory problems that take a minute to explain but have resisted mathematicians for decades, even centuries: the Collatz conjecture, Erdős-Straus, Goldbach, twin primes, Legendre, Sierpiński numbers, and odd perfect numbers. #math #numbertheory #conjecture