Q: What are the prime factors of the number 16,382,475?

 A: 3, 5, 17, 4283

Why are those the prime factors of the number 16,382,475?

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 16,382,475

16,382,475
Factor Arrows
35,460,825
Factor Arrows
31,820,275
Factor Arrows
5364,055
Factor Arrows
572,811
Factor Arrows
174,283

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, 5, 17, 4283

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 17 x 4,283 = 16,382,475

This can also be written as 32 x 52 x 171 x 4,2831 = 16,382,475

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


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