Q: What are the prime factors of the number 5,233,872?

 A: 2, 3, 7, 37, 421

Why are those the prime factors of the number 5,233,872?

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 5,233,872

5,233,872
Factor Arrows
22,616,936
Factor Arrows
21,308,468
Factor Arrows
2654,234
Factor Arrows
2327,117
Factor Arrows
3109,039
Factor Arrows
715,577
Factor Arrows
37421

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, 7, 37, 421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 37 x 421 = 5,233,872

This can also be written as 24 x 31 x 71 x 371 x 4211 = 5,233,872

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


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