Q: What are the prime factors of the number 764,721,375?

 A: 3, 5, 11, 89, 2083

Why are those the prime factors of the number 764,721,375?

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 764,721,375

764,721,375
Factor Arrows
3254,907,125
Factor Arrows
550,981,425
Factor Arrows
510,196,285
Factor Arrows
52,039,257
Factor Arrows
11185,387
Factor Arrows
892,083

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:

3, 5, 11, 89, 2083

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 11 x 89 x 2,083 = 764,721,375

This can also be written as 31 x 53 x 111 x 891 x 2,0831 = 764,721,375

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


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