Q: What are the prime factors of the number 343,320?

 A: 2, 3, 5, 2861

Why are those the prime factors of the number 343,320?

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 343,320

343,320
Factor Arrows
2171,660
Factor Arrows
285,830
Factor Arrows
242,915
Factor Arrows
314,305
Factor Arrows
52,861

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, 2861

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 2,861 = 343,320

This can also be written as 23 x 31 x 51 x 2,8611 = 343,320

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


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