Q: What are the prime factors of the number 130,731,600?

 A: 2, 3, 5, 108943

Why are those the prime factors of the number 130,731,600?

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 130,731,600

130,731,600
Factor Arrows
265,365,800
Factor Arrows
232,682,900
Factor Arrows
216,341,450
Factor Arrows
28,170,725
Factor Arrows
32,723,575
Factor Arrows
5544,715
Factor Arrows
5108,943

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, 3, 5, 108943

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 108,943 = 130,731,600

This can also be written as 24 x 31 x 52 x 108,9431 = 130,731,600

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


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