Q: What are the prime factors of the number 135,008,784?

 A: 2, 3, 113, 8297

Why are those the prime factors of the number 135,008,784?

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 135,008,784

135,008,784
Factor Arrows
267,504,392
Factor Arrows
233,752,196
Factor Arrows
216,876,098
Factor Arrows
28,438,049
Factor Arrows
32,812,683
Factor Arrows
3937,561
Factor Arrows
1138,297

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, 113, 8297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 113 x 8,297 = 135,008,784

This can also be written as 24 x 32 x 1131 x 8,2971 = 135,008,784

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


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