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What are the meanings of "factor" and "composite number" in mathematics?
If a natural number can be written as the product of two natural numbers, then these two natural numbers are called factors of the original number.

For example, in the formula 2×4=8, 8 is called the product, and both 2 and 4 are called the factors of the product 8. It cannot be said that a certain number is a factor alone, because it should be said that both numbers are factors of this number.

A complex number is divided by 1 and itself, and there are others, such as 4, 6, 8, 9, etc. , as opposed to prime numbers (the divisor is only 1 and itself, such as 2, 3, 5, 7, 1 1, etc. ), while 65438+.