Q: What are the prime factors of the number 253,632?

 A: 2, 3, 1321

Why are those the prime factors of the number 253,632?

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 253,632

253,632
Factor Arrows
2126,816
Factor Arrows
263,408
Factor Arrows
231,704
Factor Arrows
215,852
Factor Arrows
27,926
Factor Arrows
23,963
Factor Arrows
31,321

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, 1321

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 3 x 1,321 = 253,632

This can also be written as 26 x 31 x 1,3211 = 253,632

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


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