Q: What are the prime factors of the number 215,551,350?

 A: 2, 3, 5, 7, 41, 1669

Why are those the prime factors of the number 215,551,350?

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 215,551,350

215,551,350
Factor Arrows
2107,775,675
Factor Arrows
335,925,225
Factor Arrows
311,975,075
Factor Arrows
52,395,015
Factor Arrows
5479,003
Factor Arrows
768,429
Factor Arrows
411,669

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, 7, 41, 1669

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 7 x 41 x 1,669 = 215,551,350

This can also be written as 21 x 32 x 52 x 71 x 411 x 1,6691 = 215,551,350

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


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