Q: What are the prime factors of the number 212,000,010?

 A: 2, 3, 5, 31, 37, 61, 101

Why are those the prime factors of the number 212,000,010?

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 212,000,010

212,000,010
Factor Arrows
2106,000,005
Factor Arrows
335,333,335
Factor Arrows
57,066,667
Factor Arrows
31227,957
Factor Arrows
376,161
Factor Arrows
61101

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, 31, 37, 61, 101

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 31 x 37 x 61 x 101 = 212,000,010

This can also be written as 21 x 31 x 51 x 311 x 371 x 611 x 1011 = 212,000,010

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


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