Q: What are the prime factors of the number 201,680?

 A: 2, 5, 2521

Why are those the prime factors of the number 201,680?

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 201,680

201,680
Factor Arrows
2100,840
Factor Arrows
250,420
Factor Arrows
225,210
Factor Arrows
212,605
Factor Arrows
52,521

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, 5, 2521

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 2,521 = 201,680

This can also be written as 24 x 51 x 2,5211 = 201,680

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


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