Q: What are the prime factors of the number 121,524,867?

 A: 3, 31, 48397

Why are those the prime factors of the number 121,524,867?

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 121,524,867

121,524,867
Factor Arrows
340,508,289
Factor Arrows
313,502,763
Factor Arrows
34,500,921
Factor Arrows
31,500,307
Factor Arrows
3148,397

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, 31, 48397

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 31 x 48,397 = 121,524,867

This can also be written as 34 x 311 x 48,3971 = 121,524,867

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


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