Q: What are the prime factors of the number 28,585,329?

 A: 3, 19, 29, 17293

Why are those the prime factors of the number 28,585,329?

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 28,585,329

28,585,329
Factor Arrows
39,528,443
Factor Arrows
19501,497
Factor Arrows
2917,293

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:

3, 19, 29, 17293

We can check our work by multiplying all of the prime factors together: 3 x 19 x 29 x 17,293 = 28,585,329

This can also be written as 31 x 191 x 291 x 17,2931 = 28,585,329

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


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