Q: What are the prime factors of the number 202,105,536?

 A: 2, 3, 53, 19861

Why are those the prime factors of the number 202,105,536?

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 202,105,536

202,105,536
Factor Arrows
2101,052,768
Factor Arrows
250,526,384
Factor Arrows
225,263,192
Factor Arrows
212,631,596
Factor Arrows
26,315,798
Factor Arrows
23,157,899
Factor Arrows
31,052,633
Factor Arrows
5319,861

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, 3, 53, 19861

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 3 x 53 x 19,861 = 202,105,536

This can also be written as 26 x 31 x 531 x 19,8611 = 202,105,536

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


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