Q: What are the prime factors of the number 220,211,312?

 A: 2, 67, 205421

Why are those the prime factors of the number 220,211,312?

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 220,211,312

220,211,312
Factor Arrows
2110,105,656
Factor Arrows
255,052,828
Factor Arrows
227,526,414
Factor Arrows
213,763,207
Factor Arrows
67205,421

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, 67, 205421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 67 x 205,421 = 220,211,312

This can also be written as 24 x 671 x 205,4211 = 220,211,312

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


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