Q: What are the prime factors of the number 27,622,210?

 A: 2, 5, 7, 11, 29, 1237

Why are those the prime factors of the number 27,622,210?

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 27,622,210

27,622,210
Factor Arrows
213,811,105
Factor Arrows
52,762,221
Factor Arrows
7394,603
Factor Arrows
1135,873
Factor Arrows
291,237

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, 7, 11, 29, 1237

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 11 x 29 x 1,237 = 27,622,210

This can also be written as 21 x 51 x 71 x 111 x 291 x 1,2371 = 27,622,210

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


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