Q: What are the prime factors of the number 530,216,640?

 A: 2, 3, 5, 71, 2593

Why are those the prime factors of the number 530,216,640?

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 530,216,640

530,216,640
Factor Arrows
2265,108,320
Factor Arrows
2132,554,160
Factor Arrows
266,277,080
Factor Arrows
233,138,540
Factor Arrows
216,569,270
Factor Arrows
28,284,635
Factor Arrows
32,761,545
Factor Arrows
3920,515
Factor Arrows
5184,103
Factor Arrows
712,593

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, 71, 2593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 71 x 2,593 = 530,216,640

This can also be written as 26 x 32 x 51 x 711 x 2,5931 = 530,216,640

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


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