Q: What are the prime factors of the number 311,514,443?

 A: 17, 19, 31, 53, 587

Why are those the prime factors of the number 311,514,443?

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 311,514,443

311,514,443
Factor Arrows
1718,324,379
Factor Arrows
19964,441
Factor Arrows
3131,111
Factor Arrows
53587

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:

17, 19, 31, 53, 587

We can check our work by multiplying all of the prime factors together: 17 x 19 x 31 x 53 x 587 = 311,514,443

This can also be written as 171 x 191 x 311 x 531 x 5871 = 311,514,443

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


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