Q: What are the prime factors of the number 767,444,864?

 A: 2, 23, 29, 89, 101

Why are those the prime factors of the number 767,444,864?

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 767,444,864

767,444,864
Factor Arrows
2383,722,432
Factor Arrows
2191,861,216
Factor Arrows
295,930,608
Factor Arrows
247,965,304
Factor Arrows
223,982,652
Factor Arrows
211,991,326
Factor Arrows
25,995,663
Factor Arrows
23260,681
Factor Arrows
298,989
Factor Arrows
89101

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, 23, 29, 89, 101

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 2 x 23 x 29 x 89 x 101 = 767,444,864

This can also be written as 27 x 231 x 291 x 891 x 1011 = 767,444,864

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


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