Q: What are the prime factors of the number 17,618,181?

 A: 3, 7, 163, 5147

Why are those the prime factors of the number 17,618,181?

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 17,618,181

17,618,181
Factor Arrows
35,872,727
Factor Arrows
7838,961
Factor Arrows
1635,147

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, 7, 163, 5147

We can check our work by multiplying all of the prime factors together: 3 x 7 x 163 x 5,147 = 17,618,181

This can also be written as 31 x 71 x 1631 x 5,1471 = 17,618,181

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


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