👉 In mathematics, a "clerus" is a set of numbers that are all distinct and have no common divisor other than 1. For example, the set {3, 4, 5} has three elements, all distinct from each other, and they do not share any common divisors except for 1. This concept can be used in various fields such as number theory, cryptography, or combinatorics to find patterns and structures within sets of numbers.