Q: What are the prime factors of the number 127,890,064?

 A: 2, 19, 420691

Why are those the prime factors of the number 127,890,064?

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 127,890,064

127,890,064
Factor Arrows
263,945,032
Factor Arrows
231,972,516
Factor Arrows
215,986,258
Factor Arrows
27,993,129
Factor Arrows
19420,691

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, 420691

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 420,691 = 127,890,064

This can also be written as 24 x 191 x 420,6911 = 127,890,064

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


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