Q: What are the prime factors of the number 16,688,460?

 A: 2, 3, 5, 19, 14639

Why are those the prime factors of the number 16,688,460?

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 16,688,460

16,688,460
Factor Arrows
28,344,230
Factor Arrows
24,172,115
Factor Arrows
31,390,705
Factor Arrows
5278,141
Factor Arrows
1914,639

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, 19, 14639

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 19 x 14,639 = 16,688,460

This can also be written as 22 x 31 x 51 x 191 x 14,6391 = 16,688,460

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


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