Q: What are the prime factors of the number 121,425,603?

 A: 3, 13, 131, 23767

Why are those the prime factors of the number 121,425,603?

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 121,425,603

121,425,603
Factor Arrows
340,475,201
Factor Arrows
133,113,477
Factor Arrows
13123,767

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, 13, 131, 23767

We can check our work by multiplying all of the prime factors together: 3 x 13 x 131 x 23,767 = 121,425,603

This can also be written as 31 x 131 x 1311 x 23,7671 = 121,425,603

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


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