Q: What are the prime factors of the number 202,121,228?

 A: 2, 17, 97, 30643

Why are those the prime factors of the number 202,121,228?

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 202,121,228

202,121,228
Factor Arrows
2101,060,614
Factor Arrows
250,530,307
Factor Arrows
172,972,371
Factor Arrows
9730,643

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, 17, 97, 30643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 97 x 30,643 = 202,121,228

This can also be written as 22 x 171 x 971 x 30,6431 = 202,121,228

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


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