Q: What are the prime factors of the number 13,666,590?

 A: 2, 3, 5, 7, 1033

Why are those the prime factors of the number 13,666,590?

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 13,666,590

13,666,590
Factor Arrows
26,833,295
Factor Arrows
32,277,765
Factor Arrows
3759,255
Factor Arrows
3253,085
Factor Arrows
550,617
Factor Arrows
77,231
Factor Arrows
71,033

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, 5, 7, 1033

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 7 x 1,033 = 13,666,590

This can also be written as 21 x 33 x 51 x 72 x 1,0331 = 13,666,590

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


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