Q: What are the prime factors of the number 253,520?

 A: 2, 5, 3169

Why are those the prime factors of the number 253,520?

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 253,520

253,520
Factor Arrows
2126,760
Factor Arrows
263,380
Factor Arrows
231,690
Factor Arrows
215,845
Factor Arrows
53,169

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, 5, 3169

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 3,169 = 253,520

This can also be written as 24 x 51 x 3,1691 = 253,520

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


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