Q: What are the prime factors of the number 121,022,307?

 A: 3, 7, 29, 9463

Why are those the prime factors of the number 121,022,307?

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 121,022,307

121,022,307
Factor Arrows
340,340,769
Factor Arrows
313,446,923
Factor Arrows
71,920,989
Factor Arrows
7274,427
Factor Arrows
299,463

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:

3, 7, 29, 9463

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 29 x 9,463 = 121,022,307

This can also be written as 32 x 72 x 291 x 9,4631 = 121,022,307

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


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