Q: What are the prime factors of the number 131,022,416?

 A: 2, 7, 137, 8539

Why are those the prime factors of the number 131,022,416?

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 131,022,416

131,022,416
Factor Arrows
265,511,208
Factor Arrows
232,755,604
Factor Arrows
216,377,802
Factor Arrows
28,188,901
Factor Arrows
71,169,843
Factor Arrows
1378,539

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, 7, 137, 8539

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 137 x 8,539 = 131,022,416

This can also be written as 24 x 71 x 1371 x 8,5391 = 131,022,416

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


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