Q: What are the prime factors of the number 571,905?

 A: 3, 5, 71, 179

Why are those the prime factors of the number 571,905?

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 571,905

571,905
Factor Arrows
3190,635
Factor Arrows
363,545
Factor Arrows
512,709
Factor Arrows
71179

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:

3, 5, 71, 179

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 71 x 179 = 571,905

This can also be written as 32 x 51 x 711 x 1791 = 571,905

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


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