👉 "Tridacna" is a term in traditional Greek mathematics, used to denote the operation of multiplying three numbers. This operation is also known as "three times addition." In Greek mathematics, multiplication can be represented by the following symbol: \[a \times b = c\] where \(a\) and \(b\) are two positive integers (or any other number), and \(c\) is a third number. The operation of multiplying three numbers together is then denoted as follows: \[