Q: What are the prime factors of the number 84,513,422?

 A: 2, 7, 83, 257, 283

Why are those the prime factors of the number 84,513,422?

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 84,513,422

84,513,422
Factor Arrows
242,256,711
Factor Arrows
76,036,673
Factor Arrows
8372,731
Factor Arrows
257283

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, 7, 83, 257, 283

We can check our work by multiplying all of the prime factors together: 2 x 7 x 83 x 257 x 283 = 84,513,422

This can also be written as 21 x 71 x 831 x 2571 x 2831 = 84,513,422

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


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