Q: What are the prime factors of the number 687,671,288?

 A: 2, 47, 571, 3203

Why are those the prime factors of the number 687,671,288?

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 687,671,288

687,671,288
Factor Arrows
2343,835,644
Factor Arrows
2171,917,822
Factor Arrows
285,958,911
Factor Arrows
471,828,913
Factor Arrows
5713,203

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, 47, 571, 3203

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 47 x 571 x 3,203 = 687,671,288

This can also be written as 23 x 471 x 5711 x 3,2031 = 687,671,288

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


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