Q: What are the prime factors of the number 487,784,805?

 A: 3, 5, 23, 197, 7177

Why are those the prime factors of the number 487,784,805?

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 487,784,805

487,784,805
Factor Arrows
3162,594,935
Factor Arrows
532,518,987
Factor Arrows
231,413,869
Factor Arrows
1977,177

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:

3, 5, 23, 197, 7177

We can check our work by multiplying all of the prime factors together: 3 x 5 x 23 x 197 x 7,177 = 487,784,805

This can also be written as 31 x 51 x 231 x 1971 x 7,1771 = 487,784,805

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


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