Q: What are the prime factors of the number 26,356,728?

 A: 2, 3, 37, 67, 443

Why are those the prime factors of the number 26,356,728?

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 26,356,728

26,356,728
Factor Arrows
213,178,364
Factor Arrows
26,589,182
Factor Arrows
23,294,591
Factor Arrows
31,098,197
Factor Arrows
3729,681
Factor Arrows
67443

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, 37, 67, 443

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 37 x 67 x 443 = 26,356,728

This can also be written as 23 x 31 x 371 x 671 x 4431 = 26,356,728

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


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