Q: What are the prime factors of the number 125,104?

 A: 2, 7, 1117

Why are those the prime factors of the number 125,104?

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 125,104

125,104
Factor Arrows
262,552
Factor Arrows
231,276
Factor Arrows
215,638
Factor Arrows
27,819
Factor Arrows
71,117

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, 7, 1117

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 1,117 = 125,104

This can also be written as 24 x 71 x 1,1171 = 125,104

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


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