Q: What are the prime factors of the number 712,673,856?

 A: 2, 3, 83, 4969

Why are those the prime factors of the number 712,673,856?

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 712,673,856

712,673,856
Factor Arrows
2356,336,928
Factor Arrows
2178,168,464
Factor Arrows
289,084,232
Factor Arrows
244,542,116
Factor Arrows
222,271,058
Factor Arrows
211,135,529
Factor Arrows
33,711,843
Factor Arrows
31,237,281
Factor Arrows
3412,427
Factor Arrows
834,969

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, 4969

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 83 x 4,969 = 712,673,856

This can also be written as 26 x 33 x 831 x 4,9691 = 712,673,856

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


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