Q: What are the prime factors of the number 257,687,104?

 A: 2, 839, 4799

Why are those the prime factors of the number 257,687,104?

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 257,687,104

257,687,104
Factor Arrows
2128,843,552
Factor Arrows
264,421,776
Factor Arrows
232,210,888
Factor Arrows
216,105,444
Factor Arrows
28,052,722
Factor Arrows
24,026,361
Factor Arrows
8394,799

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, 839, 4799

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 839 x 4,799 = 257,687,104

This can also be written as 26 x 8391 x 4,7991 = 257,687,104

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


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