Q: What are the prime factors of the number 45,355,788?

 A: 2, 3, 139987

Why are those the prime factors of the number 45,355,788?

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 45,355,788

45,355,788
Factor Arrows
222,677,894
Factor Arrows
211,338,947
Factor Arrows
33,779,649
Factor Arrows
31,259,883
Factor Arrows
3419,961
Factor Arrows
3139,987

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, 139987

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 139,987 = 45,355,788

This can also be written as 22 x 34 x 139,9871 = 45,355,788

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


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