Q: What are the prime factors of the number 16,689,134?

 A: 2, 7, 11, 307, 353

Why are those the prime factors of the number 16,689,134?

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 16,689,134

16,689,134
Factor Arrows
28,344,567
Factor Arrows
71,192,081
Factor Arrows
11108,371
Factor Arrows
307353

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, 11, 307, 353

We can check our work by multiplying all of the prime factors together: 2 x 7 x 11 x 307 x 353 = 16,689,134

This can also be written as 21 x 71 x 111 x 3071 x 3531 = 16,689,134

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


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