Q: What are the prime factors of the number 13,210,020?

 A: 2, 3, 5, 17, 1439

Why are those the prime factors of the number 13,210,020?

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 13,210,020

13,210,020
Factor Arrows
26,605,010
Factor Arrows
23,302,505
Factor Arrows
31,100,835
Factor Arrows
3366,945
Factor Arrows
3122,315
Factor Arrows
524,463
Factor Arrows
171,439

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, 17, 1439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 17 x 1,439 = 13,210,020

This can also be written as 22 x 33 x 51 x 171 x 1,4391 = 13,210,020

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


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