Q: What are the prime factors of the number 16,057,197?

 A: 3, 13, 17, 23

Why are those the prime factors of the number 16,057,197?

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 16,057,197

16,057,197
Factor Arrows
35,352,399
Factor Arrows
31,784,133
Factor Arrows
3594,711
Factor Arrows
3198,237
Factor Arrows
366,079
Factor Arrows
135,083
Factor Arrows
13391
Factor Arrows
1723

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, 23

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 13 x 13 x 17 x 23 = 16,057,197

This can also be written as 35 x 132 x 171 x 231 = 16,057,197

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


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