Q: What are the prime factors of the number 605,406,032?

 A: 2, 7, 11, 701

Why are those the prime factors of the number 605,406,032?

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 605,406,032

605,406,032
Factor Arrows
2302,703,016
Factor Arrows
2151,351,508
Factor Arrows
275,675,754
Factor Arrows
237,837,877
Factor Arrows
75,405,411
Factor Arrows
11491,401
Factor Arrows
701701

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, 7, 11, 701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 11 x 701 x 701 = 605,406,032

This can also be written as 24 x 71 x 111 x 7012 = 605,406,032

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


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