Q: What are the prime factors of the number 343,680?

 A: 2, 3, 5, 179

Why are those the prime factors of the number 343,680?

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 343,680

343,680
Factor Arrows
2171,840
Factor Arrows
285,920
Factor Arrows
242,960
Factor Arrows
221,480
Factor Arrows
210,740
Factor Arrows
25,370
Factor Arrows
22,685
Factor Arrows
3895
Factor Arrows
5179

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, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 179 = 343,680

This can also be written as 27 x 31 x 51 x 1791 = 343,680

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


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