Q: What are the prime factors of the number 18,273,060?

 A: 2, 3, 5, 13, 19, 137

Why are those the prime factors of the number 18,273,060?

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 18,273,060

18,273,060
Factor Arrows
29,136,530
Factor Arrows
24,568,265
Factor Arrows
31,522,755
Factor Arrows
3507,585
Factor Arrows
3169,195
Factor Arrows
533,839
Factor Arrows
132,603
Factor Arrows
19137

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, 3, 5, 13, 19, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 13 x 19 x 137 = 18,273,060

This can also be written as 22 x 33 x 51 x 131 x 191 x 1371 = 18,273,060

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


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