Q: What are the prime factors of the number 129,556,726?

 A: 2, 13, 967, 5153

Why are those the prime factors of the number 129,556,726?

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 129,556,726

129,556,726
Factor Arrows
264,778,363
Factor Arrows
134,982,951
Factor Arrows
9675,153

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, 13, 967, 5153

We can check our work by multiplying all of the prime factors together: 2 x 13 x 967 x 5,153 = 129,556,726

This can also be written as 21 x 131 x 9671 x 5,1531 = 129,556,726

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


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