Q: What are the prime factors of the number 4,450,625?

 A: 5, 7121

Why are those the prime factors of the number 4,450,625?

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 4,450,625

4,450,625
Factor Arrows
5890,125
Factor Arrows
5178,025
Factor Arrows
535,605
Factor Arrows
57,121

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, 7121

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 7,121 = 4,450,625

This can also be written as 54 x 7,1211 = 4,450,625

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


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