Q: What are the prime factors of the number 135,823,608?

 A: 2, 3, 17, 47, 787

Why are those the prime factors of the number 135,823,608?

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 135,823,608

135,823,608
Factor Arrows
267,911,804
Factor Arrows
233,955,902
Factor Arrows
216,977,951
Factor Arrows
35,659,317
Factor Arrows
31,886,439
Factor Arrows
3628,813
Factor Arrows
1736,989
Factor Arrows
47787

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, 3, 17, 47, 787

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 17 x 47 x 787 = 135,823,608

This can also be written as 23 x 33 x 171 x 471 x 7871 = 135,823,608

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


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