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.
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.
Learn MoreThe factors of 56 are 1, 2, 4, 7, 8, 14, 28 and 56. Of these factors, 1, 2 and 7 are prime numbers. Therefore, they are the prime factors of 56.
Full Answer >Calculating the factors of 25 is straightforward as they are 1, 5 and 25. The first two factors to be ascertained, sometimes the only two factors, are the number itself and 1. Also, any number that can be divided by itself becomes a factor.
Full Answer >There are nine factors of 36: 1, 2, 3, 4, 6, 9, 12, 18 and 36. Because the number 36 has more than two factors, it is termed a composite number in mathematics.
Full Answer >The factors of 35 are one, five, seven and 35. The negative integers of these numbers can also be considered factors of 35 because multiplying the two negative integers produces a positive integer. The first 10 multiples of 35 are 70, 105, 140, 175, 210, 245, 280, 315 and 350.
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