Q: What are the prime factors of the number 131,440,347?

 A: 3, 19, 256219

Why are those the prime factors of the number 131,440,347?

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 131,440,347

131,440,347
Factor Arrows
343,813,449
Factor Arrows
314,604,483
Factor Arrows
34,868,161
Factor Arrows
19256,219

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, 19, 256219

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 19 x 256,219 = 131,440,347

This can also be written as 33 x 191 x 256,2191 = 131,440,347

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


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