Q: What are the prime factors of the number 201,520,000?

 A: 2, 5, 11, 229

Why are those the prime factors of the number 201,520,000?

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 201,520,000

201,520,000
Factor Arrows
2100,760,000
Factor Arrows
250,380,000
Factor Arrows
225,190,000
Factor Arrows
212,595,000
Factor Arrows
26,297,500
Factor Arrows
23,148,750
Factor Arrows
21,574,375
Factor Arrows
5314,875
Factor Arrows
562,975
Factor Arrows
512,595
Factor Arrows
52,519
Factor Arrows
11229

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, 11, 229

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 5 x 5 x 5 x 5 x 11 x 229 = 201,520,000

This can also be written as 27 x 54 x 111 x 2291 = 201,520,000

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


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