Q: What are the prime factors of the number 13,735,904?

 A: 2, 7, 13, 53, 89

Why are those the prime factors of the number 13,735,904?

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 13,735,904

13,735,904
Factor Arrows
26,867,952
Factor Arrows
23,433,976
Factor Arrows
21,716,988
Factor Arrows
2858,494
Factor Arrows
2429,247
Factor Arrows
761,321
Factor Arrows
134,717
Factor Arrows
5389

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, 7, 13, 53, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 13 x 53 x 89 = 13,735,904

This can also be written as 25 x 71 x 131 x 531 x 891 = 13,735,904

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


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