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Q:

What are the factors of 87?

A:

The factors of eighty-seven are one, three, twenty-nine, and eighty-seven. Three and twenty-nine are both prime numbers in this case -- there are no other factors.

Know More

A factor is one of two or more numbers that when multiplied together will produce a given product. In this instance, the product is eighty-seven. The only factors for eighty-seven are three and twenty-nine and of course one and eighty-seven.

It's important to note though that one is technically not a factor. A factor is either a composite number or a prime number, but due to the fact that the number one is neither composite or prime it cannot be counted as a factor.

Factors are usually found by creating a factorization tree. In a factorization tree a person has the ability to break down a number into various divisible factors. The factorization tree for the number eighty-seven is particularly small though. As mentioned before, the factors for eighty-seven, three and twenty-nine are both prime numbers. There are no numbers that are divisible in either three or twenty-nine, which means that the three is already complete.

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Related Questions

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Numbers that multiply to give you a larger number are called factors. Use a factor tree for an easy way to factor larger numbers.

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The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80. Factors are the numbers that are multiplied together to get another number. For example, to get the number 80, multiply 2 by 40, 4 by 20, 8 by 10, 5 by 16 or 1 by 80.

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In math, reasonableness refers to the results of a calculation or problem-solving operation reflecting what is reasonable within the context of the given factors or values. Two qualifiers of an answer's reasonableness are the order of magnitude within the framework of the problem and whether the results are either positive or negative. An answer can also be determined to be reasonable based on an estimate.