Q: What are the prime factors of the number 299,920?

 A: 2, 5, 23, 163

Why are those the prime factors of the number 299,920?

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 299,920

299,920
Factor Arrows
2149,960
Factor Arrows
274,980
Factor Arrows
237,490
Factor Arrows
218,745
Factor Arrows
53,749
Factor Arrows
23163

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, 23, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 23 x 163 = 299,920

This can also be written as 24 x 51 x 231 x 1631 = 299,920

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


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