Q: What are the prime factors of the number 27,708,930?

 A: 2, 3, 5, 37, 53, 157

Why are those the prime factors of the number 27,708,930?

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 27,708,930

27,708,930
Factor Arrows
213,854,465
Factor Arrows
34,618,155
Factor Arrows
31,539,385
Factor Arrows
5307,877
Factor Arrows
378,321
Factor Arrows
53157

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, 37, 53, 157

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 37 x 53 x 157 = 27,708,930

This can also be written as 21 x 32 x 51 x 371 x 531 x 1571 = 27,708,930

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


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