Q: What are the prime factors of the number 20,769,588?

 A: 2, 3, 7, 83, 331

Why are those the prime factors of the number 20,769,588?

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 20,769,588

20,769,588
Factor Arrows
210,384,794
Factor Arrows
25,192,397
Factor Arrows
31,730,799
Factor Arrows
3576,933
Factor Arrows
3192,311
Factor Arrows
727,473
Factor Arrows
83331

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, 3, 7, 83, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 83 x 331 = 20,769,588

This can also be written as 22 x 33 x 71 x 831 x 3311 = 20,769,588

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


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