Q: What are the prime factors of the number 20,137,585?

 A: 5, 13, 59, 89

Why are those the prime factors of the number 20,137,585?

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 20,137,585

20,137,585
Factor Arrows
54,027,517
Factor Arrows
13309,809
Factor Arrows
595,251
Factor Arrows
5989

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:

5, 13, 59, 89

We can check our work by multiplying all of the prime factors together: 5 x 13 x 59 x 59 x 89 = 20,137,585

This can also be written as 51 x 131 x 592 x 891 = 20,137,585

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


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