Q: What are the prime factors of the number 787,163,652?

 A: 2, 3, 11, 71, 27997

Why are those the prime factors of the number 787,163,652?

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 787,163,652

787,163,652
Factor Arrows
2393,581,826
Factor Arrows
2196,790,913
Factor Arrows
365,596,971
Factor Arrows
321,865,657
Factor Arrows
111,987,787
Factor Arrows
7127,997

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, 11, 71, 27997

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 71 x 27,997 = 787,163,652

This can also be written as 22 x 32 x 111 x 711 x 27,9971 = 787,163,652

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


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