Q: What are the prime factors of the number 321,088?

 A: 2, 29, 173

Why are those the prime factors of the number 321,088?

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 321,088

321,088
Factor Arrows
2160,544
Factor Arrows
280,272
Factor Arrows
240,136
Factor Arrows
220,068
Factor Arrows
210,034
Factor Arrows
25,017
Factor Arrows
29173

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, 29, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 29 x 173 = 321,088

This can also be written as 26 x 291 x 1731 = 321,088

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


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