The limit is infinity if the factors do not have to be whole
numbers. If you stipulate that the factors have to be whole
numbers, then, yes, for each number, there is a limit to how many
factors it has. For example, the number 4 has only 3 whole-number
factors: 1, 2, and 4.
A whole number that has exactly two factors is called a prime
number. There are several examples of prime numbers, such as 3, 5,
7, 11, 13, 17, and 19. These are just a few of the thousands of