Q: What are the prime factors of the number 125,703,712?

 A: 2, 17, 311, 743

Why are those the prime factors of the number 125,703,712?

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 125,703,712

125,703,712
Factor Arrows
262,851,856
Factor Arrows
231,425,928
Factor Arrows
215,712,964
Factor Arrows
27,856,482
Factor Arrows
23,928,241
Factor Arrows
17231,073
Factor Arrows
311743

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, 17, 311, 743

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 311 x 743 = 125,703,712

This can also be written as 25 x 171 x 3111 x 7431 = 125,703,712

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


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