Q: What are the prime factors of the number 253,953?

 A: 3, 7, 29, 139

Why are those the prime factors of the number 253,953?

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 253,953

253,953
Factor Arrows
384,651
Factor Arrows
328,217
Factor Arrows
74,031
Factor Arrows
29139

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:

3, 7, 29, 139

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 29 x 139 = 253,953

This can also be written as 32 x 71 x 291 x 1391 = 253,953

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


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