Q: What are the prime factors of the number 765,647,744?

 A: 2, 557, 10739

Why are those the prime factors of the number 765,647,744?

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 765,647,744

765,647,744
Factor Arrows
2382,823,872
Factor Arrows
2191,411,936
Factor Arrows
295,705,968
Factor Arrows
247,852,984
Factor Arrows
223,926,492
Factor Arrows
211,963,246
Factor Arrows
25,981,623
Factor Arrows
55710,739

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, 557, 10739

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 557 x 10,739 = 765,647,744

This can also be written as 27 x 5571 x 10,7391 = 765,647,744

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


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