Q: What are the prime factors of the number 313,243,437?

 A: 3, 13, 31, 109, 2377

Why are those the prime factors of the number 313,243,437?

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 313,243,437

313,243,437
Factor Arrows
3104,414,479
Factor Arrows
138,031,883
Factor Arrows
31259,093
Factor Arrows
1092,377

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, 31, 109, 2377

We can check our work by multiplying all of the prime factors together: 3 x 13 x 31 x 109 x 2,377 = 313,243,437

This can also be written as 31 x 131 x 311 x 1091 x 2,3771 = 313,243,437

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


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