Q: What are the prime factors of the number 104,115,249?

 A: 3, 7, 29, 1163

Why are those the prime factors of the number 104,115,249?

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 104,115,249

104,115,249
Factor Arrows
334,705,083
Factor Arrows
311,568,361
Factor Arrows
71,652,623
Factor Arrows
7236,089
Factor Arrows
733,727
Factor Arrows
291,163

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, 7, 29, 1163

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 7 x 29 x 1,163 = 104,115,249

This can also be written as 32 x 73 x 291 x 1,1631 = 104,115,249

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


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