Q: What are the prime factors of the number 101,121,195?

 A: 3, 5, 7, 307, 3137

Why are those the prime factors of the number 101,121,195?

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 101,121,195

101,121,195
Factor Arrows
333,707,065
Factor Arrows
56,741,413
Factor Arrows
7963,059
Factor Arrows
3073,137

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, 5, 7, 307, 3137

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 307 x 3,137 = 101,121,195

This can also be written as 31 x 51 x 71 x 3071 x 3,1371 = 101,121,195

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


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