Q: What are the prime factors of the number 135,696?

 A: 2, 3, 11, 257

Why are those the prime factors of the number 135,696?

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 135,696

135,696
Factor Arrows
267,848
Factor Arrows
233,924
Factor Arrows
216,962
Factor Arrows
28,481
Factor Arrows
32,827
Factor Arrows
11257

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, 11, 257

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 257 = 135,696

This can also be written as 24 x 31 x 111 x 2571 = 135,696

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


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