Q: What are the prime factors of the number 2,602,656?

 A: 2, 3, 7, 1291

Why are those the prime factors of the number 2,602,656?

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 2,602,656

2,602,656
Factor Arrows
21,301,328
Factor Arrows
2650,664
Factor Arrows
2325,332
Factor Arrows
2162,666
Factor Arrows
281,333
Factor Arrows
327,111
Factor Arrows
39,037
Factor Arrows
71,291

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, 3, 7, 1291

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 1,291 = 2,602,656

This can also be written as 25 x 32 x 71 x 1,2911 = 2,602,656

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


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