Q: What are the prime factors of the number 259,210?

 A: 2, 5, 7, 23

Why are those the prime factors of the number 259,210?

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 259,210

259,210
Factor Arrows
2129,605
Factor Arrows
525,921
Factor Arrows
73,703
Factor Arrows
7529
Factor Arrows
2323

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, 5, 7, 23

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 7 x 23 x 23 = 259,210

This can also be written as 21 x 51 x 72 x 232 = 259,210

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


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