Q: What are the prime factors of the number 725,227,742?

 A: 2, 79, 311, 14759

Why are those the prime factors of the number 725,227,742?

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 725,227,742

725,227,742
Factor Arrows
2362,613,871
Factor Arrows
794,590,049
Factor Arrows
31114,759

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, 79, 311, 14759

We can check our work by multiplying all of the prime factors together: 2 x 79 x 311 x 14,759 = 725,227,742

This can also be written as 21 x 791 x 3111 x 14,7591 = 725,227,742

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


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