👉 Sieveful is a word that refers to a mathematical concept in which numbers are divided into sets of equal parts and each part is examined for divisibility by other numbers. The process is carried out iteratively until only one number remains, which is then considered prime. For example: 1. 2: 1, 2, 3 2. 4: 1, 2, 4, 8 3. 6: 1, 2,