Q: What are the prime factors of the number 627,521,220?

 A: 2, 3, 5, 31, 112459

Why are those the prime factors of the number 627,521,220?

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 627,521,220

627,521,220
Factor Arrows
2313,760,610
Factor Arrows
2156,880,305
Factor Arrows
352,293,435
Factor Arrows
317,431,145
Factor Arrows
53,486,229
Factor Arrows
31112,459

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, 31, 112459

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 31 x 112,459 = 627,521,220

This can also be written as 22 x 32 x 51 x 311 x 112,4591 = 627,521,220

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


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