Q: What are the prime factors of the number 16,948,386?

 A: 2, 3, 7, 13, 3449

Why are those the prime factors of the number 16,948,386?

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 16,948,386

16,948,386
Factor Arrows
28,474,193
Factor Arrows
32,824,731
Factor Arrows
3941,577
Factor Arrows
3313,859
Factor Arrows
744,837
Factor Arrows
133,449

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, 7, 13, 3449

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 13 x 3,449 = 16,948,386

This can also be written as 21 x 33 x 71 x 131 x 3,4491 = 16,948,386

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


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