Q: What are the prime factors of the number 220,230,016?

 A: 2, 389, 4423

Why are those the prime factors of the number 220,230,016?

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 220,230,016

220,230,016
Factor Arrows
2110,115,008
Factor Arrows
255,057,504
Factor Arrows
227,528,752
Factor Arrows
213,764,376
Factor Arrows
26,882,188
Factor Arrows
23,441,094
Factor Arrows
21,720,547
Factor Arrows
3894,423

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, 389, 4423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 389 x 4,423 = 220,230,016

This can also be written as 27 x 3891 x 4,4231 = 220,230,016

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


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