Q: What are the prime factors of the number 122,111,028?

 A: 2, 3, 13, 260921

Why are those the prime factors of the number 122,111,028?

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 122,111,028

122,111,028
Factor Arrows
261,055,514
Factor Arrows
230,527,757
Factor Arrows
310,175,919
Factor Arrows
33,391,973
Factor Arrows
13260,921

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, 13, 260921

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 260,921 = 122,111,028

This can also be written as 22 x 32 x 131 x 260,9211 = 122,111,028

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


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