Q: What are the prime factors of the number 317,530,422?

 A: 2, 3, 11, 409, 1307

Why are those the prime factors of the number 317,530,422?

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 317,530,422

317,530,422
Factor Arrows
2158,765,211
Factor Arrows
352,921,737
Factor Arrows
317,640,579
Factor Arrows
35,880,193
Factor Arrows
11534,563
Factor Arrows
4091,307

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, 3, 11, 409, 1307

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 409 x 1,307 = 317,530,422

This can also be written as 21 x 33 x 111 x 4091 x 1,3071 = 317,530,422

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


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