Q: What are the prime factors of the number 481,438,530?

 A: 2, 3, 5, 19, 23, 12241

Why are those the prime factors of the number 481,438,530?

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 481,438,530

481,438,530
Factor Arrows
2240,719,265
Factor Arrows
380,239,755
Factor Arrows
326,746,585
Factor Arrows
55,349,317
Factor Arrows
19281,543
Factor Arrows
2312,241

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, 19, 23, 12241

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 19 x 23 x 12,241 = 481,438,530

This can also be written as 21 x 32 x 51 x 191 x 231 x 12,2411 = 481,438,530

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


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