Q: What are the prime factors of the number 135,112,404?

 A: 2, 3, 7, 47, 4889

Why are those the prime factors of the number 135,112,404?

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 135,112,404

135,112,404
Factor Arrows
267,556,202
Factor Arrows
233,778,101
Factor Arrows
311,259,367
Factor Arrows
71,608,481
Factor Arrows
7229,783
Factor Arrows
474,889

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, 7, 47, 4889

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 47 x 4,889 = 135,112,404

This can also be written as 22 x 31 x 72 x 471 x 4,8891 = 135,112,404

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


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