Q: What are the prime factors of the number 77,192,395?

 A: 5, 7, 509, 619

Why are those the prime factors of the number 77,192,395?

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 77,192,395

77,192,395
Factor Arrows
515,438,479
Factor Arrows
72,205,497
Factor Arrows
7315,071
Factor Arrows
509619

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, 7, 509, 619

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 509 x 619 = 77,192,395

This can also be written as 51 x 72 x 5091 x 6191 = 77,192,395

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


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