👉 In mathematics, a "schatchen" is an element of the ring of integers modulo n. This means that it is the unique integer in the ring of integers modulo n such that when divided by n, the remainder is 1. For example, if you have a ring of integers mod 3, and you want to find the schatchen (which is congruent to 1 modulo 3), you would look for an element x in the ring such that x^2 =
