Q: What are the prime factors of the number 404,430,216?

 A: 2, 3, 31, 233, 2333

Why are those the prime factors of the number 404,430,216?

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 404,430,216

404,430,216
Factor Arrows
2202,215,108
Factor Arrows
2101,107,554
Factor Arrows
250,553,777
Factor Arrows
316,851,259
Factor Arrows
31543,589
Factor Arrows
2332,333

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, 31, 233, 2333

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 233 x 2,333 = 404,430,216

This can also be written as 23 x 31 x 311 x 2331 x 2,3331 = 404,430,216

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


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