Q: What are the prime factors of the number 253,330,326?

 A: 2, 3, 23, 31, 19739

Why are those the prime factors of the number 253,330,326?

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 253,330,326

253,330,326
Factor Arrows
2126,665,163
Factor Arrows
342,221,721
Factor Arrows
314,073,907
Factor Arrows
23611,909
Factor Arrows
3119,739

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, 23, 31, 19739

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 23 x 31 x 19,739 = 253,330,326

This can also be written as 21 x 32 x 231 x 311 x 19,7391 = 253,330,326

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


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