Q: What are the prime factors of the number 2,662,528?

 A: 2, 11, 31, 61

Why are those the prime factors of the number 2,662,528?

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 2,662,528

2,662,528
Factor Arrows
21,331,264
Factor Arrows
2665,632
Factor Arrows
2332,816
Factor Arrows
2166,408
Factor Arrows
283,204
Factor Arrows
241,602
Factor Arrows
220,801
Factor Arrows
111,891
Factor Arrows
3161

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, 31, 61

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 2 x 11 x 31 x 61 = 2,662,528

This can also be written as 27 x 111 x 311 x 611 = 2,662,528

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


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