Q: What are the prime factors of the number 13,123,299?

 A: 3, 7, 43, 14533

Why are those the prime factors of the number 13,123,299?

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 13,123,299

13,123,299
Factor Arrows
34,374,433
Factor Arrows
7624,919
Factor Arrows
4314,533

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:

3, 7, 43, 14533

We can check our work by multiplying all of the prime factors together: 3 x 7 x 43 x 14,533 = 13,123,299

This can also be written as 31 x 71 x 431 x 14,5331 = 13,123,299

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


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