Q: What are the prime factors of the number 340,758?

 A: 2, 3, 11, 1721

Why are those the prime factors of the number 340,758?

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 340,758

340,758
Factor Arrows
2170,379
Factor Arrows
356,793
Factor Arrows
318,931
Factor Arrows
111,721

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, 11, 1721

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 1,721 = 340,758

This can also be written as 21 x 32 x 111 x 1,7211 = 340,758

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


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