Q: What are the prime factors of the number 786,851,307?

 A: 3, 11, 17, 101, 1543

Why are those the prime factors of the number 786,851,307?

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 786,851,307

786,851,307
Factor Arrows
3262,283,769
Factor Arrows
387,427,923
Factor Arrows
329,142,641
Factor Arrows
112,649,331
Factor Arrows
17155,843
Factor Arrows
1011,543

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, 11, 17, 101, 1543

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 17 x 101 x 1,543 = 786,851,307

This can also be written as 33 x 111 x 171 x 1011 x 1,5431 = 786,851,307

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


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