Q: What are the prime factors of the number 210,203,343?

 A: 3, 7, 31, 11959

Why are those the prime factors of the number 210,203,343?

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 210,203,343

210,203,343
Factor Arrows
370,067,781
Factor Arrows
323,355,927
Factor Arrows
37,785,309
Factor Arrows
32,595,103
Factor Arrows
7370,729
Factor Arrows
3111,959

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:

3, 7, 31, 11959

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 31 x 11,959 = 210,203,343

This can also be written as 34 x 71 x 311 x 11,9591 = 210,203,343

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


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