Q: What are the prime factors of the number 125,285,320?

 A: 2, 5, 59, 53087

Why are those the prime factors of the number 125,285,320?

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 125,285,320

125,285,320
Factor Arrows
262,642,660
Factor Arrows
231,321,330
Factor Arrows
215,660,665
Factor Arrows
53,132,133
Factor Arrows
5953,087

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, 59, 53087

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 59 x 53,087 = 125,285,320

This can also be written as 23 x 51 x 591 x 53,0871 = 125,285,320

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


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