Q: What are the prime factors of the number 310,960?

 A: 2, 5, 13, 23

Why are those the prime factors of the number 310,960?

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 310,960

310,960
Factor Arrows
2155,480
Factor Arrows
277,740
Factor Arrows
238,870
Factor Arrows
219,435
Factor Arrows
53,887
Factor Arrows
13299
Factor Arrows
1323

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, 5, 13, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 13 x 13 x 23 = 310,960

This can also be written as 24 x 51 x 132 x 231 = 310,960

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


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