Q: What are the prime factors of the number 13,209,364?

 A: 2, 7, 107, 4409

Why are those the prime factors of the number 13,209,364?

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 13,209,364

13,209,364
Factor Arrows
26,604,682
Factor Arrows
23,302,341
Factor Arrows
7471,763
Factor Arrows
1074,409

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, 107, 4409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 107 x 4,409 = 13,209,364

This can also be written as 22 x 71 x 1071 x 4,4091 = 13,209,364

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


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