Q: What are the prime factors of the number 15,259,244?

 A: 2, 7, 11, 13, 37, 103

Why are those the prime factors of the number 15,259,244?

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 15,259,244

15,259,244
Factor Arrows
27,629,622
Factor Arrows
23,814,811
Factor Arrows
7544,973
Factor Arrows
1149,543
Factor Arrows
133,811
Factor Arrows
37103

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, 11, 13, 37, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 11 x 13 x 37 x 103 = 15,259,244

This can also be written as 22 x 71 x 111 x 131 x 371 x 1031 = 15,259,244

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


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