Q: What are the prime factors of the number 814,500?

 A: 2, 3, 5, 181

Why are those the prime factors of the number 814,500?

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 814,500

814,500
Factor Arrows
2407,250
Factor Arrows
2203,625
Factor Arrows
367,875
Factor Arrows
322,625
Factor Arrows
54,525
Factor Arrows
5905
Factor Arrows
5181

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, 3, 5, 181

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 5 x 181 = 814,500

This can also be written as 22 x 32 x 53 x 1811 = 814,500

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


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