Q: What are the prime factors of the number 387,124?

 A: 2, 17, 5693

Why are those the prime factors of the number 387,124?

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 387,124

387,124
Factor Arrows
2193,562
Factor Arrows
296,781
Factor Arrows
175,693

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:

2, 17, 5693

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 5,693 = 387,124

This can also be written as 22 x 171 x 5,6931 = 387,124

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


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