Q: What are the prime factors of the number 15,796,794?

 A: 2, 3, 13, 31, 47, 139

Why are those the prime factors of the number 15,796,794?

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 15,796,794

15,796,794
Factor Arrows
27,898,397
Factor Arrows
32,632,799
Factor Arrows
13202,523
Factor Arrows
316,533
Factor Arrows
47139

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, 13, 31, 47, 139

We can check our work by multiplying all of the prime factors together: 2 x 3 x 13 x 31 x 47 x 139 = 15,796,794

This can also be written as 21 x 31 x 131 x 311 x 471 x 1391 = 15,796,794

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


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