Q: What are the prime factors of the number 15,343,744?

 A: 2, 13, 9221

Why are those the prime factors of the number 15,343,744?

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 15,343,744

15,343,744
Factor Arrows
27,671,872
Factor Arrows
23,835,936
Factor Arrows
21,917,968
Factor Arrows
2958,984
Factor Arrows
2479,492
Factor Arrows
2239,746
Factor Arrows
2119,873
Factor Arrows
139,221

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, 13, 9221

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 13 x 9,221 = 15,343,744

This can also be written as 27 x 131 x 9,2211 = 15,343,744

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


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