Q: What are the prime factors of the number 26,393,728?

 A: 2, 37, 5573

Why are those the prime factors of the number 26,393,728?

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 26,393,728

26,393,728
Factor Arrows
213,196,864
Factor Arrows
26,598,432
Factor Arrows
23,299,216
Factor Arrows
21,649,608
Factor Arrows
2824,804
Factor Arrows
2412,402
Factor Arrows
2206,201
Factor Arrows
375,573

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, 37, 5573

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 37 x 5,573 = 26,393,728

This can also be written as 27 x 371 x 5,5731 = 26,393,728

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


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