Q: What are the prime factors of the number 103,022,320?

 A: 2, 5, 79, 16301

Why are those the prime factors of the number 103,022,320?

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 103,022,320

103,022,320
Factor Arrows
251,511,160
Factor Arrows
225,755,580
Factor Arrows
212,877,790
Factor Arrows
26,438,895
Factor Arrows
51,287,779
Factor Arrows
7916,301

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, 5, 79, 16301

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 79 x 16,301 = 103,022,320

This can also be written as 24 x 51 x 791 x 16,3011 = 103,022,320

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


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