Q: What are the prime factors of the number 122,001,240?

 A: 2, 3, 5, 41, 137, 181

Why are those the prime factors of the number 122,001,240?

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 122,001,240

122,001,240
Factor Arrows
261,000,620
Factor Arrows
230,500,310
Factor Arrows
215,250,155
Factor Arrows
35,083,385
Factor Arrows
51,016,677
Factor Arrows
4124,797
Factor Arrows
137181

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, 5, 41, 137, 181

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 41 x 137 x 181 = 122,001,240

This can also be written as 23 x 31 x 51 x 411 x 1371 x 1811 = 122,001,240

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


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