👉 In mathematics, a "kermesse" (or "quintessence") is a number that satisfies a certain property. In other words, it's a number that can be represented as a sum of some or all of its factors. For example, consider the number 14. It has two factors: 1 and 7. Therefore, 1 + 7 = 8, which is equal to 14. This property is called "the kermesse"