Each of the elements that are involved in a multiplication.

### Example

In the multiplication 24 × 7 = 168, the numbers 24 and 7 are called factors and the number 168 is called the product.

### Educational Note

### Historical Note

In Latin, factor means “*a person who does or makes*“. In Greek, in Euclid’s Elements, the word that indicates a factor of a product is “*pleura*“, which means “side”, because geometrically, the product is considered as the area of a rectangle and the lengths of the sides are the factors of the product.