Q: What are the prime factors of the number 280,042,530?

 A: 2, 3, 5, 17, 31, 17713

Why are those the prime factors of the number 280,042,530?

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 280,042,530

280,042,530
Factor Arrows
2140,021,265
Factor Arrows
346,673,755
Factor Arrows
59,334,751
Factor Arrows
17549,103
Factor Arrows
3117,713

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, 17, 31, 17713

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 17 x 31 x 17,713 = 280,042,530

This can also be written as 21 x 31 x 51 x 171 x 311 x 17,7131 = 280,042,530

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


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