Q: What are the prime factors of the number 201,411,328?

 A: 2, 786763

Why are those the prime factors of the number 201,411,328?

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 201,411,328

201,411,328
Factor Arrows
2100,705,664
Factor Arrows
250,352,832
Factor Arrows
225,176,416
Factor Arrows
212,588,208
Factor Arrows
26,294,104
Factor Arrows
23,147,052
Factor Arrows
21,573,526
Factor Arrows
2786,763

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, 786763

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 786,763 = 201,411,328

This can also be written as 28 x 786,7631 = 201,411,328

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


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