Q: What are the prime factors of the number 3,282,020?

 A: 2, 5, 7, 17, 197

Why are those the prime factors of the number 3,282,020?

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 3,282,020

3,282,020
Factor Arrows
21,641,010
Factor Arrows
2820,505
Factor Arrows
5164,101
Factor Arrows
723,443
Factor Arrows
73,349
Factor Arrows
17197

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, 7, 17, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 7 x 17 x 197 = 3,282,020

This can also be written as 22 x 51 x 72 x 171 x 1971 = 3,282,020

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


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