Q: What are the prime factors of the number 13,197,087?

 A: 3, 43, 421

Why are those the prime factors of the number 13,197,087?

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 13,197,087

13,197,087
Factor Arrows
34,399,029
Factor Arrows
31,466,343
Factor Arrows
3488,781
Factor Arrows
3162,927
Factor Arrows
354,309
Factor Arrows
318,103
Factor Arrows
43421

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, 43, 421

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 43 x 421 = 13,197,087

This can also be written as 36 x 431 x 4211 = 13,197,087

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


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