Q: What are the prime factors of the number 257,747,116?

 A: 2, 11, 571, 10259

Why are those the prime factors of the number 257,747,116?

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 257,747,116

257,747,116
Factor Arrows
2128,873,558
Factor Arrows
264,436,779
Factor Arrows
115,857,889
Factor Arrows
57110,259

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, 11, 571, 10259

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 571 x 10,259 = 257,747,116

This can also be written as 22 x 111 x 5711 x 10,2591 = 257,747,116

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


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