Q: What are the prime factors of the number 321,126,201?

 A: 3, 11, 19, 6323

Why are those the prime factors of the number 321,126,201?

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 321,126,201

321,126,201
Factor Arrows
3107,042,067
Factor Arrows
335,680,689
Factor Arrows
311,893,563
Factor Arrows
33,964,521
Factor Arrows
31,321,507
Factor Arrows
11120,137
Factor Arrows
196,323

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, 11, 19, 6323

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 19 x 6,323 = 321,126,201

This can also be written as 35 x 111 x 191 x 6,3231 = 321,126,201

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


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