Q: What are the prime factors of the number 753,728?

 A: 2, 11777

Why are those the prime factors of the number 753,728?

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 753,728

753,728
Factor Arrows
2376,864
Factor Arrows
2188,432
Factor Arrows
294,216
Factor Arrows
247,108
Factor Arrows
223,554
Factor Arrows
211,777

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, 11777

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 11,777 = 753,728

This can also be written as 26 x 11,7771 = 753,728

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


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