Q: What are the prime factors of the number 125,503,308?

 A: 2, 3, 7, 71147

Why are those the prime factors of the number 125,503,308?

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 125,503,308

125,503,308
Factor Arrows
262,751,654
Factor Arrows
231,375,827
Factor Arrows
310,458,609
Factor Arrows
33,486,203
Factor Arrows
7498,029
Factor Arrows
771,147

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, 71147

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 7 x 71,147 = 125,503,308

This can also be written as 22 x 32 x 72 x 71,1471 = 125,503,308

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


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