Q: What are the prime factors of the number 299,247,328?

 A: 2, 17, 53, 97, 107

Why are those the prime factors of the number 299,247,328?

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 299,247,328

299,247,328
Factor Arrows
2149,623,664
Factor Arrows
274,811,832
Factor Arrows
237,405,916
Factor Arrows
218,702,958
Factor Arrows
29,351,479
Factor Arrows
17550,087
Factor Arrows
5310,379
Factor Arrows
97107

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, 17, 53, 97, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 53 x 97 x 107 = 299,247,328

This can also be written as 25 x 171 x 531 x 971 x 1071 = 299,247,328

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


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