Q: What are the prime factors of the number 210,131,205?

 A: 3, 5, 131, 106937

Why are those the prime factors of the number 210,131,205?

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 210,131,205

210,131,205
Factor Arrows
370,043,735
Factor Arrows
514,008,747
Factor Arrows
131106,937

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, 5, 131, 106937

We can check our work by multiplying all of the prime factors together: 3 x 5 x 131 x 106,937 = 210,131,205

This can also be written as 31 x 51 x 1311 x 106,9371 = 210,131,205

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


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