Q: What are the prime factors of the number 161,834,571?

 A: 3, 19, 315467

Why are those the prime factors of the number 161,834,571?

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 161,834,571

161,834,571
Factor Arrows
353,944,857
Factor Arrows
317,981,619
Factor Arrows
35,993,873
Factor Arrows
19315,467

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, 315467

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 19 x 315,467 = 161,834,571

This can also be written as 33 x 191 x 315,4671 = 161,834,571

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


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