Q: What are the prime factors of the number 720,108?

 A: 2, 3, 83, 241

Why are those the prime factors of the number 720,108?

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 720,108

720,108
Factor Arrows
2360,054
Factor Arrows
2180,027
Factor Arrows
360,009
Factor Arrows
320,003
Factor Arrows
83241

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, 83, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 83 x 241 = 720,108

This can also be written as 22 x 32 x 831 x 2411 = 720,108

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


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