Q: What are the prime factors of the number 251,044,576?

 A: 2, 17, 461479

Why are those the prime factors of the number 251,044,576?

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 251,044,576

251,044,576
Factor Arrows
2125,522,288
Factor Arrows
262,761,144
Factor Arrows
231,380,572
Factor Arrows
215,690,286
Factor Arrows
27,845,143
Factor Arrows
17461,479

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, 17, 461479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 461,479 = 251,044,576

This can also be written as 25 x 171 x 461,4791 = 251,044,576

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


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