Q: What are the prime factors of the number 27,257,188?

 A: 2, 7, 17, 173, 331

Why are those the prime factors of the number 27,257,188?

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 27,257,188

27,257,188
Factor Arrows
213,628,594
Factor Arrows
26,814,297
Factor Arrows
7973,471
Factor Arrows
1757,263
Factor Arrows
173331

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, 7, 17, 173, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 17 x 173 x 331 = 27,257,188

This can also be written as 22 x 71 x 171 x 1731 x 3311 = 27,257,188

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


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