Q: What are the prime factors of the number 424,576?

 A: 2, 31, 107

Why are those the prime factors of the number 424,576?

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 424,576

424,576
Factor Arrows
2212,288
Factor Arrows
2106,144
Factor Arrows
253,072
Factor Arrows
226,536
Factor Arrows
213,268
Factor Arrows
26,634
Factor Arrows
23,317
Factor Arrows
31107

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, 31, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 31 x 107 = 424,576

This can also be written as 27 x 311 x 1071 = 424,576

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


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