Q: What are the prime factors of the number 201,133,125?

 A: 3, 5, 29, 137

Why are those the prime factors of the number 201,133,125?

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 201,133,125

201,133,125
Factor Arrows
367,044,375
Factor Arrows
322,348,125
Factor Arrows
37,449,375
Factor Arrows
32,483,125
Factor Arrows
5496,625
Factor Arrows
599,325
Factor Arrows
519,865
Factor Arrows
53,973
Factor Arrows
29137

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, 5, 29, 137

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 5 x 5 x 5 x 29 x 137 = 201,133,125

This can also be written as 34 x 54 x 291 x 1371 = 201,133,125

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


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