Q: What are the prime factors of the number 13,400,709?

 A: 3, 7, 17, 37537

Why are those the prime factors of the number 13,400,709?

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 13,400,709

13,400,709
Factor Arrows
34,466,903
Factor Arrows
7638,129
Factor Arrows
1737,537

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, 7, 17, 37537

We can check our work by multiplying all of the prime factors together: 3 x 7 x 17 x 37,537 = 13,400,709

This can also be written as 31 x 71 x 171 x 37,5371 = 13,400,709

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


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