Q: What are the prime factors of the number 27,186,176?

 A: 2, 139, 191

Why are those the prime factors of the number 27,186,176?

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 27,186,176

27,186,176
Factor Arrows
213,593,088
Factor Arrows
26,796,544
Factor Arrows
23,398,272
Factor Arrows
21,699,136
Factor Arrows
2849,568
Factor Arrows
2424,784
Factor Arrows
2212,392
Factor Arrows
2106,196
Factor Arrows
253,098
Factor Arrows
226,549
Factor Arrows
139191

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, 139, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 139 x 191 = 27,186,176

This can also be written as 210 x 1391 x 1911 = 27,186,176

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


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