Q: What are the prime factors of the number 27,186,688?

 A: 2, 29, 1831

Why are those the prime factors of the number 27,186,688?

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 27,186,688

27,186,688
Factor Arrows
213,593,344
Factor Arrows
26,796,672
Factor Arrows
23,398,336
Factor Arrows
21,699,168
Factor Arrows
2849,584
Factor Arrows
2424,792
Factor Arrows
2212,396
Factor Arrows
2106,198
Factor Arrows
253,099
Factor Arrows
291,831

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, 29, 1831

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 29 x 1,831 = 27,186,688

This can also be written as 29 x 291 x 1,8311 = 27,186,688

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


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