Q: What are the prime factors of the number 13,781,488?

 A: 2, 7, 123049

Why are those the prime factors of the number 13,781,488?

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 13,781,488

13,781,488
Factor Arrows
26,890,744
Factor Arrows
23,445,372
Factor Arrows
21,722,686
Factor Arrows
2861,343
Factor Arrows
7123,049

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, 123049

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 123,049 = 13,781,488

This can also be written as 24 x 71 x 123,0491 = 13,781,488

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


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