Q: What are the prime factors of the number 311,821,935?

 A: 3, 5, 61, 340789

Why are those the prime factors of the number 311,821,935?

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 311,821,935

311,821,935
Factor Arrows
3103,940,645
Factor Arrows
520,788,129
Factor Arrows
61340,789

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, 5, 61, 340789

We can check our work by multiplying all of the prime factors together: 3 x 5 x 61 x 340,789 = 311,821,935

This can also be written as 31 x 51 x 611 x 340,7891 = 311,821,935

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


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