Q: What are the prime factors of the number 220,816?

 A: 2, 37, 373

Why are those the prime factors of the number 220,816?

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 220,816

220,816
Factor Arrows
2110,408
Factor Arrows
255,204
Factor Arrows
227,602
Factor Arrows
213,801
Factor Arrows
37373

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, 37, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 37 x 373 = 220,816

This can also be written as 24 x 371 x 3731 = 220,816

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


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