Q: What are the prime factors of the number 340,553,565?

 A: 3, 5, 11, 83, 307

Why are those the prime factors of the number 340,553,565?

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 340,553,565

340,553,565
Factor Arrows
3113,517,855
Factor Arrows
337,839,285
Factor Arrows
312,613,095
Factor Arrows
34,204,365
Factor Arrows
31,401,455
Factor Arrows
5280,291
Factor Arrows
1125,481
Factor Arrows
83307

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:

3, 5, 11, 83, 307

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 11 x 83 x 307 = 340,553,565

This can also be written as 35 x 51 x 111 x 831 x 3071 = 340,553,565

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


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