Q: What are the prime factors of the number 27,278,550?

 A: 2, 3, 5, 13, 4663

Why are those the prime factors of the number 27,278,550?

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 27,278,550

27,278,550
Factor Arrows
213,639,275
Factor Arrows
34,546,425
Factor Arrows
31,515,475
Factor Arrows
5303,095
Factor Arrows
560,619
Factor Arrows
134,663

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, 13, 4663

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 13 x 4,663 = 27,278,550

This can also be written as 21 x 32 x 52 x 131 x 4,6631 = 27,278,550

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


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