Q: What are the prime factors of the number 27,747,775?

 A: 5, 11, 23, 41, 107

Why are those the prime factors of the number 27,747,775?

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 27,747,775

27,747,775
Factor Arrows
55,549,555
Factor Arrows
51,109,911
Factor Arrows
11100,901
Factor Arrows
234,387
Factor Arrows
41107

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:

5, 11, 23, 41, 107

We can check our work by multiplying all of the prime factors together: 5 x 5 x 11 x 23 x 41 x 107 = 27,747,775

This can also be written as 52 x 111 x 231 x 411 x 1071 = 27,747,775

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


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