Q: What are the prime factors of the number 610,540?

 A: 2, 5, 7, 89

Why are those the prime factors of the number 610,540?

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 610,540

610,540
Factor Arrows
2305,270
Factor Arrows
2152,635
Factor Arrows
530,527
Factor Arrows
74,361
Factor Arrows
7623
Factor Arrows
789

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, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 7 x 7 x 89 = 610,540

This can also be written as 22 x 51 x 73 x 891 = 610,540

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


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