Goldbach's conjecture
Concept
The conjecture that every even integer greater than 2 can be expressed as the sum of two primes.
Mentioned in 2 videos
Videos Mentioning Goldbach's conjecture

Ep. 194: Doing Less, Building Discipline, and the Books Cal Newport Read in April | Deep Questions
Cal Newport
A famous unsolved number theory conjecture, central to the novel 'Uncle Petros and Goldbach's Conjecture'.

The Obviously True Theorem No One Can Prove
Veritasium
The conjecture that every even integer greater than 2 can be expressed as the sum of two primes.