Q: What are the prime factors of the number 845,584,728?

 A: 2, 3, 89, 395873

Why are those the prime factors of the number 845,584,728?

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 845,584,728

845,584,728
Factor Arrows
2422,792,364
Factor Arrows
2211,396,182
Factor Arrows
2105,698,091
Factor Arrows
335,232,697
Factor Arrows
89395,873

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, 89, 395873

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 89 x 395,873 = 845,584,728

This can also be written as 23 x 31 x 891 x 395,8731 = 845,584,728

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


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