Q: What are the prime factors of the number 135,201,165?

 A: 3, 5, 11, 163, 457

Why are those the prime factors of the number 135,201,165?

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 135,201,165

135,201,165
Factor Arrows
345,067,055
Factor Arrows
59,013,411
Factor Arrows
11819,401
Factor Arrows
1174,491
Factor Arrows
163457

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:

3, 5, 11, 163, 457

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 11 x 163 x 457 = 135,201,165

This can also be written as 31 x 51 x 112 x 1631 x 4571 = 135,201,165

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


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