Q: What are the prime factors of the number 118,884,490?

 A: 2, 5, 107, 137, 811

Why are those the prime factors of the number 118,884,490?

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 118,884,490

118,884,490
Factor Arrows
259,442,245
Factor Arrows
511,888,449
Factor Arrows
107111,107
Factor Arrows
137811

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, 5, 107, 137, 811

We can check our work by multiplying all of the prime factors together: 2 x 5 x 107 x 137 x 811 = 118,884,490

This can also be written as 21 x 51 x 1071 x 1371 x 8111 = 118,884,490

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


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