Numbers that are multiplied to form a product are called

multiplier and multiplicand factors

Step-by-step explanation:

Different words are used in different contexts. When two numbers are multiplied, one can be identified as the multiplier, and the other the multiplicand.

When two or more numbers or expressions are multiplied, they are often generically referred to as factors. The term factors can also be used to mean prime factors, as when we seek to express a product in terms of its factors.