Q: What are the prime factors of the number 422,145,870?

 A: 2, 3, 5, 17, 827737

Why are those the prime factors of the number 422,145,870?

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 422,145,870

422,145,870
Factor Arrows
2211,072,935
Factor Arrows
370,357,645
Factor Arrows
514,071,529
Factor Arrows
17827,737

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, 3, 5, 17, 827737

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 17 x 827,737 = 422,145,870

This can also be written as 21 x 31 x 51 x 171 x 827,7371 = 422,145,870

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


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