Q: What are the prime factors of the number 86,426?

 A: 2, 79, 547

Why are those the prime factors of the number 86,426?

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 86,426

86,426
Factor Arrows
243,213
Factor Arrows
79547

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, 79, 547

We can check our work by multiplying all of the prime factors together: 2 x 79 x 547 = 86,426

This can also be written as 21 x 791 x 5471 = 86,426

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


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