Q: What are the prime factors of the number 18,538,377?

 A: 3, 11, 13, 79, 547

Why are those the prime factors of the number 18,538,377?

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 18,538,377

18,538,377
Factor Arrows
36,179,459
Factor Arrows
11561,769
Factor Arrows
1343,213
Factor Arrows
79547

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, 11, 13, 79, 547

We can check our work by multiplying all of the prime factors together: 3 x 11 x 13 x 79 x 547 = 18,538,377

This can also be written as 31 x 111 x 131 x 791 x 5471 = 18,538,377

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


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