Q: What are the prime factors of the number 210,112,110?

 A: 2, 3, 5, 13, 31, 1931

Why are those the prime factors of the number 210,112,110?

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 210,112,110

210,112,110
Factor Arrows
2105,056,055
Factor Arrows
335,018,685
Factor Arrows
311,672,895
Factor Arrows
33,890,965
Factor Arrows
5778,193
Factor Arrows
1359,861
Factor Arrows
311,931

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, 13, 31, 1931

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 13 x 31 x 1,931 = 210,112,110

This can also be written as 21 x 33 x 51 x 131 x 311 x 1,9311 = 210,112,110

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


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