Q: What are the prime factors of the number 424,131,312?

 A: 2, 3, 11, 239, 3361

Why are those the prime factors of the number 424,131,312?

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 424,131,312

424,131,312
Factor Arrows
2212,065,656
Factor Arrows
2106,032,828
Factor Arrows
253,016,414
Factor Arrows
226,508,207
Factor Arrows
38,836,069
Factor Arrows
11803,279
Factor Arrows
2393,361

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, 11, 239, 3361

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 11 x 239 x 3,361 = 424,131,312

This can also be written as 24 x 31 x 111 x 2391 x 3,3611 = 424,131,312

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


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