Q: What are the prime factors of the number 812,851,264?

 A: 2, 331, 38371

Why are those the prime factors of the number 812,851,264?

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 812,851,264

812,851,264
Factor Arrows
2406,425,632
Factor Arrows
2203,212,816
Factor Arrows
2101,606,408
Factor Arrows
250,803,204
Factor Arrows
225,401,602
Factor Arrows
212,700,801
Factor Arrows
33138,371

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, 331, 38371

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 331 x 38,371 = 812,851,264

This can also be written as 26 x 3311 x 38,3711 = 812,851,264

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


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