Q: What are the prime factors of the number 202,717,620?

 A: 2, 3, 5, 7, 53629

Why are those the prime factors of the number 202,717,620?

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 202,717,620

202,717,620
Factor Arrows
2101,358,810
Factor Arrows
250,679,405
Factor Arrows
316,893,135
Factor Arrows
35,631,045
Factor Arrows
31,877,015
Factor Arrows
5375,403
Factor Arrows
753,629

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, 5, 7, 53629

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 7 x 53,629 = 202,717,620

This can also be written as 22 x 33 x 51 x 71 x 53,6291 = 202,717,620

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


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