Q: What are the prime factors of the number 307,161,136?

 A: 2, 23, 179, 4663

Why are those the prime factors of the number 307,161,136?

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 307,161,136

307,161,136
Factor Arrows
2153,580,568
Factor Arrows
276,790,284
Factor Arrows
238,395,142
Factor Arrows
219,197,571
Factor Arrows
23834,677
Factor Arrows
1794,663

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, 23, 179, 4663

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 179 x 4,663 = 307,161,136

This can also be written as 24 x 231 x 1791 x 4,6631 = 307,161,136

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


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