Q: What are the prime factors of the number 165,755,408?

 A: 2, 7, 13, 113843

Why are those the prime factors of the number 165,755,408?

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 165,755,408

165,755,408
Factor Arrows
282,877,704
Factor Arrows
241,438,852
Factor Arrows
220,719,426
Factor Arrows
210,359,713
Factor Arrows
71,479,959
Factor Arrows
13113,843

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, 7, 13, 113843

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 13 x 113,843 = 165,755,408

This can also be written as 24 x 71 x 131 x 113,8431 = 165,755,408

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


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