Q: What are the prime factors of the number 13,115,228?

 A: 2, 7, 17, 59, 467

Why are those the prime factors of the number 13,115,228?

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 13,115,228

13,115,228
Factor Arrows
26,557,614
Factor Arrows
23,278,807
Factor Arrows
7468,401
Factor Arrows
1727,553
Factor Arrows
59467

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, 17, 59, 467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 17 x 59 x 467 = 13,115,228

This can also be written as 22 x 71 x 171 x 591 x 4671 = 13,115,228

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


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