Q: What are the prime factors of the number 211,462,660?

 A: 2, 5, 17, 331, 1879

Why are those the prime factors of the number 211,462,660?

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 211,462,660

211,462,660
Factor Arrows
2105,731,330
Factor Arrows
252,865,665
Factor Arrows
510,573,133
Factor Arrows
17621,949
Factor Arrows
3311,879

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, 5, 17, 331, 1879

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 17 x 331 x 1,879 = 211,462,660

This can also be written as 22 x 51 x 171 x 3311 x 1,8791 = 211,462,660

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


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