Q: What are the prime factors of the number 425,505,250?

 A: 2, 5, 643, 2647

Why are those the prime factors of the number 425,505,250?

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 425,505,250

425,505,250
Factor Arrows
2212,752,625
Factor Arrows
542,550,525
Factor Arrows
58,510,105
Factor Arrows
51,702,021
Factor Arrows
6432,647

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, 643, 2647

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 643 x 2,647 = 425,505,250

This can also be written as 21 x 53 x 6431 x 2,6471 = 425,505,250

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


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