Q: What are the prime factors of the number 215,889,246?

 A: 2, 3, 53, 241, 313

Why are those the prime factors of the number 215,889,246?

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 215,889,246

215,889,246
Factor Arrows
2107,944,623
Factor Arrows
335,981,541
Factor Arrows
311,993,847
Factor Arrows
33,997,949
Factor Arrows
5375,433
Factor Arrows
241313

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, 53, 241, 313

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 53 x 241 x 313 = 215,889,246

This can also be written as 21 x 33 x 531 x 2411 x 3131 = 215,889,246

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


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