Q: What are the prime factors of the number 315,469?

 A: 7, 11, 17, 241

Why are those the prime factors of the number 315,469?

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 315,469

315,469
Factor Arrows
745,067
Factor Arrows
114,097
Factor Arrows
17241

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:

7, 11, 17, 241

We can check our work by multiplying all of the prime factors together: 7 x 11 x 17 x 241 = 315,469

This can also be written as 71 x 111 x 171 x 2411 = 315,469

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


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