Q: What are the prime factors of the number 125,200?

 A: 2, 5, 313

Why are those the prime factors of the number 125,200?

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 125,200

125,200
Factor Arrows
262,600
Factor Arrows
231,300
Factor Arrows
215,650
Factor Arrows
27,825
Factor Arrows
51,565
Factor Arrows
5313

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, 5, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 313 = 125,200

This can also be written as 24 x 52 x 3131 = 125,200

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


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