Q: What are the prime factors of the number 388,711,085?

 A: 5, 7, 37, 300163

Why are those the prime factors of the number 388,711,085?

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 388,711,085

388,711,085
Factor Arrows
577,742,217
Factor Arrows
711,106,031
Factor Arrows
37300,163

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:

5, 7, 37, 300163

We can check our work by multiplying all of the prime factors together: 5 x 7 x 37 x 300,163 = 388,711,085

This can also be written as 51 x 71 x 371 x 300,1631 = 388,711,085

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


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