Q: What are the prime factors of the number 540,733,520?

 A: 2, 5, 103, 137, 479

Why are those the prime factors of the number 540,733,520?

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 540,733,520

540,733,520
Factor Arrows
2270,366,760
Factor Arrows
2135,183,380
Factor Arrows
267,591,690
Factor Arrows
233,795,845
Factor Arrows
56,759,169
Factor Arrows
10365,623
Factor Arrows
137479

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, 5, 103, 137, 479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 103 x 137 x 479 = 540,733,520

This can also be written as 24 x 51 x 1031 x 1371 x 4791 = 540,733,520

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


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