Q: What are the prime factors of the number 39,172,167?

 A: 3, 19, 25453

Why are those the prime factors of the number 39,172,167?

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 39,172,167

39,172,167
Factor Arrows
313,057,389
Factor Arrows
34,352,463
Factor Arrows
31,450,821
Factor Arrows
3483,607
Factor Arrows
1925,453

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, 19, 25453

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 19 x 25,453 = 39,172,167

This can also be written as 34 x 191 x 25,4531 = 39,172,167

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


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