Q: What are the prime factors of the number 646,202,703?

 A: 3, 239, 743, 1213

Why are those the prime factors of the number 646,202,703?

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 646,202,703

646,202,703
Factor Arrows
3215,400,901
Factor Arrows
239901,259
Factor Arrows
7431,213

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, 239, 743, 1213

We can check our work by multiplying all of the prime factors together: 3 x 239 x 743 x 1,213 = 646,202,703

This can also be written as 31 x 2391 x 7431 x 1,2131 = 646,202,703

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


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