Q: What are the prime factors of the number 781,130,275?

 A: 5, 79, 395509

Why are those the prime factors of the number 781,130,275?

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 781,130,275

781,130,275
Factor Arrows
5156,226,055
Factor Arrows
531,245,211
Factor Arrows
79395,509

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:

5, 79, 395509

We can check our work by multiplying all of the prime factors together: 5 x 5 x 79 x 395,509 = 781,130,275

This can also be written as 52 x 791 x 395,5091 = 781,130,275

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


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