Q: What are the prime factors of the number 417,663?

 A: 3, 31, 499

Why are those the prime factors of the number 417,663?

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 417,663

417,663
Factor Arrows
3139,221
Factor Arrows
346,407
Factor Arrows
315,469
Factor Arrows
31499

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, 31, 499

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 31 x 499 = 417,663

This can also be written as 33 x 311 x 4991 = 417,663

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


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