Q: What are the prime factors of the number 121,032,102?

 A: 2, 3, 73, 137, 2017

Why are those the prime factors of the number 121,032,102?

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 121,032,102

121,032,102
Factor Arrows
260,516,051
Factor Arrows
320,172,017
Factor Arrows
73276,329
Factor Arrows
1372,017

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, 73, 137, 2017

We can check our work by multiplying all of the prime factors together: 2 x 3 x 73 x 137 x 2,017 = 121,032,102

This can also be written as 21 x 31 x 731 x 1371 x 2,0171 = 121,032,102

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


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