Prime Numbers (Mₙ = 2ⁿ − 1)

From a channel Lumen includes in full: The University of Oxford's Mathematical Institute posts full undergraduate lecture courses (Introduction to University Mathematics, Dynamics, Geometry and more) plus public lectures by leading mathematicians, recorded as delivered.

A 18-minute video from Oxford Mathematics's catalogue; the title names its topic.

Video by Oxford Mathematics, played through YouTube's embedded player.