Q: What are the prime factors of the number 11,864,625?

 A: 3, 5, 29, 1091

Why are those the prime factors of the number 11,864,625?

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 11,864,625

11,864,625
Factor Arrows
33,954,875
Factor Arrows
5790,975
Factor Arrows
5158,195
Factor Arrows
531,639
Factor Arrows
291,091

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, 29, 1091

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 29 x 1,091 = 11,864,625

This can also be written as 31 x 53 x 291 x 1,0911 = 11,864,625

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


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