Q: What are the prime factors of the number 130,715,536?

 A: 2, 7, 137, 1217

Why are those the prime factors of the number 130,715,536?

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 130,715,536

130,715,536
Factor Arrows
265,357,768
Factor Arrows
232,678,884
Factor Arrows
216,339,442
Factor Arrows
28,169,721
Factor Arrows
71,167,103
Factor Arrows
7166,729
Factor Arrows
1371,217

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, 1217

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 137 x 1,217 = 130,715,536

This can also be written as 24 x 72 x 1371 x 1,2171 = 130,715,536

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


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