Q: What are the prime factors of the number 440,625?

 A: 3, 5, 47

Why are those the prime factors of the number 440,625?

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 440,625

440,625
Factor Arrows
3146,875
Factor Arrows
529,375
Factor Arrows
55,875
Factor Arrows
51,175
Factor Arrows
5235
Factor Arrows
547

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:

3, 5, 47

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 5 x 5 x 47 = 440,625

This can also be written as 31 x 55 x 471 = 440,625

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


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