Q: What are the prime factors of the number 165,101,279?

 A: 7, 19, 487, 2549

Why are those the prime factors of the number 165,101,279?

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 165,101,279

165,101,279
Factor Arrows
723,585,897
Factor Arrows
191,241,363
Factor Arrows
4872,549

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:

7, 19, 487, 2549

We can check our work by multiplying all of the prime factors together: 7 x 19 x 487 x 2,549 = 165,101,279

This can also be written as 71 x 191 x 4871 x 2,5491 = 165,101,279

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


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