Q: What are the prime factors of the number 20,229,102?

 A: 2, 3, 193, 647

Why are those the prime factors of the number 20,229,102?

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 20,229,102

20,229,102
Factor Arrows
210,114,551
Factor Arrows
33,371,517
Factor Arrows
31,123,839
Factor Arrows
3374,613
Factor Arrows
3124,871
Factor Arrows
193647

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, 193, 647

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 193 x 647 = 20,229,102

This can also be written as 21 x 34 x 1931 x 6471 = 20,229,102

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


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