Q: What are the prime factors of the number 13,553,514?

 A: 2, 3, 13, 43, 449

Why are those the prime factors of the number 13,553,514?

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 13,553,514

13,553,514
Factor Arrows
26,776,757
Factor Arrows
32,258,919
Factor Arrows
3752,973
Factor Arrows
3250,991
Factor Arrows
1319,307
Factor Arrows
43449

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, 13, 43, 449

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 13 x 43 x 449 = 13,553,514

This can also be written as 21 x 33 x 131 x 431 x 4491 = 13,553,514

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


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