Q: What are the prime factors of the number 55,016,928?

 A: 2, 3, 37, 1721

Why are those the prime factors of the number 55,016,928?

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 55,016,928

55,016,928
Factor Arrows
227,508,464
Factor Arrows
213,754,232
Factor Arrows
26,877,116
Factor Arrows
23,438,558
Factor Arrows
21,719,279
Factor Arrows
3573,093
Factor Arrows
3191,031
Factor Arrows
363,677
Factor Arrows
371,721

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, 37, 1721

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 37 x 1,721 = 55,016,928

This can also be written as 25 x 33 x 371 x 1,7211 = 55,016,928

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


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