Q: What are the prime factors of the number 257,772,231?

 A: 3, 53, 251, 2153

Why are those the prime factors of the number 257,772,231?

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 257,772,231

257,772,231
Factor Arrows
385,924,077
Factor Arrows
328,641,359
Factor Arrows
53540,403
Factor Arrows
2512,153

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, 53, 251, 2153

We can check our work by multiplying all of the prime factors together: 3 x 3 x 53 x 251 x 2,153 = 257,772,231

This can also be written as 32 x 531 x 2511 x 2,1531 = 257,772,231

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


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