Q: What are the prime factors of the number 261,125,631?

 A: 3, 13, 2231843

Why are those the prime factors of the number 261,125,631?

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 261,125,631

261,125,631
Factor Arrows
387,041,877
Factor Arrows
329,013,959
Factor Arrows
132,231,843

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, 13, 2231843

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 2,231,843 = 261,125,631

This can also be written as 32 x 131 x 2,231,8431 = 261,125,631

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


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