Q: What are the prime factors of the number 15,717,988?

 A: 2, 11, 13, 27479

Why are those the prime factors of the number 15,717,988?

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 15,717,988

15,717,988
Factor Arrows
27,858,994
Factor Arrows
23,929,497
Factor Arrows
11357,227
Factor Arrows
1327,479

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, 11, 13, 27479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 13 x 27,479 = 15,717,988

This can also be written as 22 x 111 x 131 x 27,4791 = 15,717,988

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


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