Q: What are the prime factors of the number 15,734,656?

 A: 2, 7, 17, 1033

Why are those the prime factors of the number 15,734,656?

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 15,734,656

15,734,656
Factor Arrows
27,867,328
Factor Arrows
23,933,664
Factor Arrows
21,966,832
Factor Arrows
2983,416
Factor Arrows
2491,708
Factor Arrows
2245,854
Factor Arrows
2122,927
Factor Arrows
717,561
Factor Arrows
171,033

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, 17, 1033

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 17 x 1,033 = 15,734,656

This can also be written as 27 x 71 x 171 x 1,0331 = 15,734,656

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


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