Q: What are the prime factors of the number 17,810,534?

 A: 2, 7, 491, 2591

Why are those the prime factors of the number 17,810,534?

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 17,810,534

17,810,534
Factor Arrows
28,905,267
Factor Arrows
71,272,181
Factor Arrows
4912,591

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, 7, 491, 2591

We can check our work by multiplying all of the prime factors together: 2 x 7 x 491 x 2,591 = 17,810,534

This can also be written as 21 x 71 x 4911 x 2,5911 = 17,810,534

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


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