Q: What are the prime factors of the number 130,445,523?

 A: 3, 13, 139, 617

Why are those the prime factors of the number 130,445,523?

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 130,445,523

130,445,523
Factor Arrows
343,481,841
Factor Arrows
314,493,947
Factor Arrows
131,114,919
Factor Arrows
1385,763
Factor Arrows
139617

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:

3, 13, 139, 617

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 13 x 139 x 617 = 130,445,523

This can also be written as 32 x 132 x 1391 x 6171 = 130,445,523

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


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