Q: What are the prime factors of the number 766,161,864?

 A: 2, 3, 13, 73, 11213

Why are those the prime factors of the number 766,161,864?

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 766,161,864

766,161,864
Factor Arrows
2383,080,932
Factor Arrows
2191,540,466
Factor Arrows
295,770,233
Factor Arrows
331,923,411
Factor Arrows
310,641,137
Factor Arrows
13818,549
Factor Arrows
7311,213

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, 13, 73, 11213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 13 x 73 x 11,213 = 766,161,864

This can also be written as 23 x 32 x 131 x 731 x 11,2131 = 766,161,864

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


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