Q: What are the prime factors of the number 858,475?

 A: 5, 23, 1493

Why are those the prime factors of the number 858,475?

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 858,475

858,475
Factor Arrows
5171,695
Factor Arrows
534,339
Factor Arrows
231,493

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, 23, 1493

We can check our work by multiplying all of the prime factors together: 5 x 5 x 23 x 1,493 = 858,475

This can also be written as 52 x 231 x 1,4931 = 858,475

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


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