Q: What are the prime factors of the number 485,006,130?

 A: 2, 3, 5, 7, 28513

Why are those the prime factors of the number 485,006,130?

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 485,006,130

485,006,130
Factor Arrows
2242,503,065
Factor Arrows
380,834,355
Factor Arrows
326,944,785
Factor Arrows
38,981,595
Factor Arrows
32,993,865
Factor Arrows
3997,955
Factor Arrows
5199,591
Factor Arrows
728,513

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, 7, 28513

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 7 x 28,513 = 485,006,130

This can also be written as 21 x 35 x 51 x 71 x 28,5131 = 485,006,130

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


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