Q: What are the prime factors of the number 8,187,255?

 A: 3, 5, 31, 5869

Why are those the prime factors of the number 8,187,255?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 8,187,255

8,187,255
Factor Arrows
32,729,085
Factor Arrows
3909,695
Factor Arrows
5181,939
Factor Arrows
315,869

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 5, 31, 5869

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 31 x 5,869 = 8,187,255

This can also be written as 32 x 51 x 311 x 5,8691 = 8,187,255

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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