Q: What are the prime factors of the number 3,208,329?

 A: 3, 163

Why are those the prime factors of the number 3,208,329?

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 3,208,329

3,208,329
Factor Arrows
31,069,443
Factor Arrows
3356,481
Factor Arrows
3118,827
Factor Arrows
339,609
Factor Arrows
313,203
Factor Arrows
34,401
Factor Arrows
31,467
Factor Arrows
3489
Factor Arrows
3163

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, 163

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 163 = 3,208,329

This can also be written as 39 x 1631 = 3,208,329

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


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