Q: What are the prime factors of the number 220,300,320?

 A: 2, 3, 5, 458959

Why are those the prime factors of the number 220,300,320?

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 220,300,320

220,300,320
Factor Arrows
2110,150,160
Factor Arrows
255,075,080
Factor Arrows
227,537,540
Factor Arrows
213,768,770
Factor Arrows
26,884,385
Factor Arrows
32,294,795
Factor Arrows
5458,959

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, 458959

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 458,959 = 220,300,320

This can also be written as 25 x 31 x 51 x 458,9591 = 220,300,320

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


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