Q: What are the prime factors of the number 2,519,776?

 A: 2, 7, 1607

Why are those the prime factors of the number 2,519,776?

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 2,519,776

2,519,776
Factor Arrows
21,259,888
Factor Arrows
2629,944
Factor Arrows
2314,972
Factor Arrows
2157,486
Factor Arrows
278,743
Factor Arrows
711,249
Factor Arrows
71,607

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, 7, 1607

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 1,607 = 2,519,776

This can also be written as 25 x 72 x 1,6071 = 2,519,776

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


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