Q: What are the prime factors of the number 320,342,310?

 A: 2, 3, 5, 211, 5623

Why are those the prime factors of the number 320,342,310?

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 320,342,310

320,342,310
Factor Arrows
2160,171,155
Factor Arrows
353,390,385
Factor Arrows
317,796,795
Factor Arrows
35,932,265
Factor Arrows
51,186,453
Factor Arrows
2115,623

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, 5, 211, 5623

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 211 x 5,623 = 320,342,310

This can also be written as 21 x 33 x 51 x 2111 x 5,6231 = 320,342,310

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


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