Q: What are the prime factors of the number 807,078,468?

 A: 2, 3, 7, 17, 29, 19489

Why are those the prime factors of the number 807,078,468?

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 807,078,468

807,078,468
Factor Arrows
2403,539,234
Factor Arrows
2201,769,617
Factor Arrows
367,256,539
Factor Arrows
79,608,077
Factor Arrows
17565,181
Factor Arrows
2919,489

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, 7, 17, 29, 19489

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 17 x 29 x 19,489 = 807,078,468

This can also be written as 22 x 31 x 71 x 171 x 291 x 19,4891 = 807,078,468

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


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