Q: What are the prime factors of the number 18,275,490?

 A: 2, 3, 5, 113, 599

Why are those the prime factors of the number 18,275,490?

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 18,275,490

18,275,490
Factor Arrows
29,137,745
Factor Arrows
33,045,915
Factor Arrows
31,015,305
Factor Arrows
3338,435
Factor Arrows
567,687
Factor Arrows
113599

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, 113, 599

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 113 x 599 = 18,275,490

This can also be written as 21 x 33 x 51 x 1131 x 5991 = 18,275,490

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


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