Q: What are the prime factors of the number 5,240,147?

 A: 11, 31, 127

Why are those the prime factors of the number 5,240,147?

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 5,240,147

5,240,147
Factor Arrows
11476,377
Factor Arrows
1143,307
Factor Arrows
113,937
Factor Arrows
31127

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:

11, 31, 127

We can check our work by multiplying all of the prime factors together: 11 x 11 x 11 x 31 x 127 = 5,240,147

This can also be written as 113 x 311 x 1271 = 5,240,147

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


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