Q: What are the prime factors of the number 45,374,432?

 A: 2, 19, 37, 2017

Why are those the prime factors of the number 45,374,432?

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 45,374,432

45,374,432
Factor Arrows
222,687,216
Factor Arrows
211,343,608
Factor Arrows
25,671,804
Factor Arrows
22,835,902
Factor Arrows
21,417,951
Factor Arrows
1974,629
Factor Arrows
372,017

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, 19, 37, 2017

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 37 x 2,017 = 45,374,432

This can also be written as 25 x 191 x 371 x 2,0171 = 45,374,432

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


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