Q: What are the prime factors of the number 868,238,580?

 A: 2, 3, 5, 11, 53, 24821

Why are those the prime factors of the number 868,238,580?

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 868,238,580

868,238,580
Factor Arrows
2434,119,290
Factor Arrows
2217,059,645
Factor Arrows
372,353,215
Factor Arrows
514,470,643
Factor Arrows
111,315,513
Factor Arrows
5324,821

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, 5, 11, 53, 24821

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 11 x 53 x 24,821 = 868,238,580

This can also be written as 22 x 31 x 51 x 111 x 531 x 24,8211 = 868,238,580

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


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