Q: What are the prime factors of the number 661,923?

 A: 3, 73547

Why are those the prime factors of the number 661,923?

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 661,923

661,923
Factor Arrows
3220,641
Factor Arrows
373,547

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, 73547

We can check our work by multiplying all of the prime factors together: 3 x 3 x 73,547 = 661,923

This can also be written as 32 x 73,5471 = 661,923

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


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