Q: What are the prime factors of the number 810,748?

 A: 2, 157, 1291

Why are those the prime factors of the number 810,748?

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 810,748

810,748
Factor Arrows
2405,374
Factor Arrows
2202,687
Factor Arrows
1571,291

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, 157, 1291

We can check our work by multiplying all of the prime factors together: 2 x 2 x 157 x 1,291 = 810,748

This can also be written as 22 x 1571 x 1,2911 = 810,748

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


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