Q: What are the prime factors of the number 45,039,528?

 A: 2, 3, 17, 31, 1187

Why are those the prime factors of the number 45,039,528?

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 45,039,528

45,039,528
Factor Arrows
222,519,764
Factor Arrows
211,259,882
Factor Arrows
25,629,941
Factor Arrows
31,876,647
Factor Arrows
3625,549
Factor Arrows
1736,797
Factor Arrows
311,187

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, 17, 31, 1187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 17 x 31 x 1,187 = 45,039,528

This can also be written as 23 x 32 x 171 x 311 x 1,1871 = 45,039,528

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


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