Q: What are the prime factors of the number 16,350,984?

 A: 2, 3, 13, 647

Why are those the prime factors of the number 16,350,984?

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 16,350,984

16,350,984
Factor Arrows
28,175,492
Factor Arrows
24,087,746
Factor Arrows
22,043,873
Factor Arrows
3681,291
Factor Arrows
3227,097
Factor Arrows
375,699
Factor Arrows
325,233
Factor Arrows
38,411
Factor Arrows
13647

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, 13, 647

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 13 x 647 = 16,350,984

This can also be written as 23 x 35 x 131 x 6471 = 16,350,984

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


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