Q: What are the prime factors of the number 321,200,244?

 A: 2, 3, 17, 19, 23, 1201

Why are those the prime factors of the number 321,200,244?

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 321,200,244

321,200,244
Factor Arrows
2160,600,122
Factor Arrows
280,300,061
Factor Arrows
326,766,687
Factor Arrows
38,922,229
Factor Arrows
17524,837
Factor Arrows
1927,623
Factor Arrows
231,201

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, 17, 19, 23, 1201

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 17 x 19 x 23 x 1,201 = 321,200,244

This can also be written as 22 x 32 x 171 x 191 x 231 x 1,2011 = 321,200,244

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


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