Q: What are the prime factors of the number 340,368?

 A: 2, 3, 7, 1013

Why are those the prime factors of the number 340,368?

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 340,368

340,368
Factor Arrows
2170,184
Factor Arrows
285,092
Factor Arrows
242,546
Factor Arrows
221,273
Factor Arrows
37,091
Factor Arrows
71,013

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, 7, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 1,013 = 340,368

This can also be written as 24 x 31 x 71 x 1,0131 = 340,368

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


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