Mathematician (German), who completed a Masters in Mathematics at Oxford, claims every number, absolutely every one, is divisible by a prince number, what about 1?

https://youtu.be/mpqc4jGhkN8?si=jKnfyirLhieGBFQQ At minute 6:45, this newbie claims that every number, and he emphasizes absolutely every number, is divisible by a prime number… what about the 1 then?