Q: What are the prime factors of the number 310,401,394?

 A: 2, 179, 199, 4357

Why are those the prime factors of the number 310,401,394?

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 310,401,394

310,401,394
Factor Arrows
2155,200,697
Factor Arrows
179867,043
Factor Arrows
1994,357

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:

2, 179, 199, 4357

We can check our work by multiplying all of the prime factors together: 2 x 179 x 199 x 4,357 = 310,401,394

This can also be written as 21 x 1791 x 1991 x 4,3571 = 310,401,394

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


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