Q: What are the prime factors of the number 686,300?

 A: 2, 5, 6863

Why are those the prime factors of the number 686,300?

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 686,300

686,300
Factor Arrows
2343,150
Factor Arrows
2171,575
Factor Arrows
534,315
Factor Arrows
56,863

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:

2, 5, 6863

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 6,863 = 686,300

This can also be written as 22 x 52 x 6,8631 = 686,300

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


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