You Didnt Know 161 Has So Many Factors

Take every odd prime and sort it by its remainder when divided by four. Every odd prime is either 1 mod 4 or 3 mod 4 — two ... Some numbers split perfectly. Others refuse. The hidden reason is one of the most useful ideas in all of math — WARNING* for ages 13 & up ONLY. DON'T say I Leaders take on doing work with your hands. --- Opening and closing themes composed by Brian Sanyshyn of Brian Sanyshyn ... "Do We Need to Go Up to Half the Number to Find Factors? — Viewer's Question Answered with Proof"