Q: What are the prime factors of the number 771,140,728?

 A: 2, 96392591

Why are those the prime factors of the number 771,140,728?

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 771,140,728

771,140,728
Factor Arrows
2385,570,364
Factor Arrows
2192,785,182
Factor Arrows
296,392,591

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, 96392591

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 96,392,591 = 771,140,728

This can also be written as 23 x 96,392,5911 = 771,140,728

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


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