Q: What are the prime factors of the number 206,330,310?

 A: 2, 3, 5, 19, 120661

Why are those the prime factors of the number 206,330,310?

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 206,330,310

206,330,310
Factor Arrows
2103,165,155
Factor Arrows
334,388,385
Factor Arrows
311,462,795
Factor Arrows
52,292,559
Factor Arrows
19120,661

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, 19, 120661

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 19 x 120,661 = 206,330,310

This can also be written as 21 x 32 x 51 x 191 x 120,6611 = 206,330,310

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


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