Q: What are the prime factors of the number 64,439,165?

 A: 5, 7, 19, 109, 127

Why are those the prime factors of the number 64,439,165?

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 64,439,165

64,439,165
Factor Arrows
512,887,833
Factor Arrows
71,841,119
Factor Arrows
7263,017
Factor Arrows
1913,843
Factor Arrows
109127

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:

5, 7, 19, 109, 127

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 19 x 109 x 127 = 64,439,165

This can also be written as 51 x 72 x 191 x 1091 x 1271 = 64,439,165

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


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