Q: What are the prime factors of the number 212,231,210?

 A: 2, 5, 67, 173, 1831

Why are those the prime factors of the number 212,231,210?

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 212,231,210

212,231,210
Factor Arrows
2106,115,605
Factor Arrows
521,223,121
Factor Arrows
67316,763
Factor Arrows
1731,831

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, 67, 173, 1831

We can check our work by multiplying all of the prime factors together: 2 x 5 x 67 x 173 x 1,831 = 212,231,210

This can also be written as 21 x 51 x 671 x 1731 x 1,8311 = 212,231,210

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


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