Q: What are the prime factors of the number 251,255,691?

 A: 3, 83, 336353

Why are those the prime factors of the number 251,255,691?

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 251,255,691

251,255,691
Factor Arrows
383,751,897
Factor Arrows
327,917,299
Factor Arrows
83336,353

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, 83, 336353

We can check our work by multiplying all of the prime factors together: 3 x 3 x 83 x 336,353 = 251,255,691

This can also be written as 32 x 831 x 336,3531 = 251,255,691

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


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