Q: What are the prime factors of the number 18,860,065?

 A: 5, 7, 19, 79, 359

Why are those the prime factors of the number 18,860,065?

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 18,860,065

18,860,065
Factor Arrows
53,772,013
Factor Arrows
7538,859
Factor Arrows
1928,361
Factor Arrows
79359

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:

5, 7, 19, 79, 359

We can check our work by multiplying all of the prime factors together: 5 x 7 x 19 x 79 x 359 = 18,860,065

This can also be written as 51 x 71 x 191 x 791 x 3591 = 18,860,065

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


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