Q: What are the prime factors of the number 721,340,702?

 A: 2, 17, 367, 57809

Why are those the prime factors of the number 721,340,702?

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 721,340,702

721,340,702
Factor Arrows
2360,670,351
Factor Arrows
1721,215,903
Factor Arrows
36757,809

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, 17, 367, 57809

We can check our work by multiplying all of the prime factors together: 2 x 17 x 367 x 57,809 = 721,340,702

This can also be written as 21 x 171 x 3671 x 57,8091 = 721,340,702

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


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