👉 Octonary is a mathematical concept in which each digit of a base-10 number (the base of the numbering system) appears exactly once. This definition is often used to denote numbers with eight digits, such as 853210, 8532100, or any other octal number. Octonary arithmetic is a branch of mathematics that deals with the operations and properties of octal numbers. It involves understanding how these numbers behave mathematically
