Q: What are the prime factors of the number 211,661,010?

 A: 2, 3, 5, 11, 213799

Why are those the prime factors of the number 211,661,010?

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 211,661,010

211,661,010
Factor Arrows
2105,830,505
Factor Arrows
335,276,835
Factor Arrows
311,758,945
Factor Arrows
52,351,789
Factor Arrows
11213,799

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, 11, 213799

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 11 x 213,799 = 211,661,010

This can also be written as 21 x 32 x 51 x 111 x 213,7991 = 211,661,010

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


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