Q: What are the prime factors of the number 545,930?

 A: 2, 5, 7, 11, 709

Why are those the prime factors of the number 545,930?

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 545,930

545,930
Factor Arrows
2272,965
Factor Arrows
554,593
Factor Arrows
77,799
Factor Arrows
11709

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, 5, 7, 11, 709

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 11 x 709 = 545,930

This can also be written as 21 x 51 x 71 x 111 x 7091 = 545,930

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


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