Q: What are the prime factors of the number 213,001,110?

 A: 2, 3, 5, 7, 251, 449

Why are those the prime factors of the number 213,001,110?

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 213,001,110

213,001,110
Factor Arrows
2106,500,555
Factor Arrows
335,500,185
Factor Arrows
311,833,395
Factor Arrows
33,944,465
Factor Arrows
5788,893
Factor Arrows
7112,699
Factor Arrows
251449

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, 5, 7, 251, 449

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 251 x 449 = 213,001,110

This can also be written as 21 x 33 x 51 x 71 x 2511 x 4491 = 213,001,110

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


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