Q: What are the prime factors of the number 225,250,025?

 A: 5, 7, 11, 13, 9001

Why are those the prime factors of the number 225,250,025?

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 225,250,025

225,250,025
Factor Arrows
545,050,005
Factor Arrows
59,010,001
Factor Arrows
71,287,143
Factor Arrows
11117,013
Factor Arrows
139,001

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:

5, 7, 11, 13, 9001

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 11 x 13 x 9,001 = 225,250,025

This can also be written as 52 x 71 x 111 x 131 x 9,0011 = 225,250,025

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


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