Q: What are the prime factors of the number 16,355,547?

 A: 3, 13, 17, 2741

Why are those the prime factors of the number 16,355,547?

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 16,355,547

16,355,547
Factor Arrows
35,451,849
Factor Arrows
31,817,283
Factor Arrows
3605,761
Factor Arrows
1346,597
Factor Arrows
172,741

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:

3, 13, 17, 2741

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 13 x 17 x 2,741 = 16,355,547

This can also be written as 33 x 131 x 171 x 2,7411 = 16,355,547

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


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