Q: What are the prime factors of the number 13,507,776?

 A: 2, 3, 7817

Why are those the prime factors of the number 13,507,776?

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 13,507,776

13,507,776
Factor Arrows
26,753,888
Factor Arrows
23,376,944
Factor Arrows
21,688,472
Factor Arrows
2844,236
Factor Arrows
2422,118
Factor Arrows
2211,059
Factor Arrows
370,353
Factor Arrows
323,451
Factor Arrows
37,817

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, 7817

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 3 x 3 x 3 x 7,817 = 13,507,776

This can also be written as 26 x 33 x 7,8171 = 13,507,776

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


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