Q: What are the prime factors of the number 18,365,581?

 A: 13, 41, 34457

Why are those the prime factors of the number 18,365,581?

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 18,365,581

18,365,581
Factor Arrows
131,412,737
Factor Arrows
4134,457

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:

13, 41, 34457

We can check our work by multiplying all of the prime factors together: 13 x 41 x 34,457 = 18,365,581

This can also be written as 131 x 411 x 34,4571 = 18,365,581

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


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