Naegele Formula

Negele formula, Negele numbers - an elementary divisor from number theory. The numbers are named after the mathematician Leonhard Negele, who formulated and proved the theorem about these numbers in 1879.

There are several formulations of this formula (for example, Nagel considered the products of the values ​​of two or three sines of given angles), but three are usually given:

1. If n is an even number, then N(n) is the smallest natural number that leaves remainder 1 when divided by the product of all