Q: What are the prime factors of the number 45,150,672?

 A: 2, 3, 7, 83, 1619

Why are those the prime factors of the number 45,150,672?

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 45,150,672

45,150,672
Factor Arrows
222,575,336
Factor Arrows
211,287,668
Factor Arrows
25,643,834
Factor Arrows
22,821,917
Factor Arrows
3940,639
Factor Arrows
7134,377
Factor Arrows
831,619

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, 7, 83, 1619

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 83 x 1,619 = 45,150,672

This can also be written as 24 x 31 x 71 x 831 x 1,6191 = 45,150,672

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


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