Q: What are the prime factors of the number 765,535,860?

 A: 2, 3, 5, 499, 947

Why are those the prime factors of the number 765,535,860?

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 765,535,860

765,535,860
Factor Arrows
2382,767,930
Factor Arrows
2191,383,965
Factor Arrows
363,794,655
Factor Arrows
321,264,885
Factor Arrows
37,088,295
Factor Arrows
32,362,765
Factor Arrows
5472,553
Factor Arrows
499947

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, 5, 499, 947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 5 x 499 x 947 = 765,535,860

This can also be written as 22 x 34 x 51 x 4991 x 9471 = 765,535,860

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


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