Q: What are the prime factors of the number 514,505,440?

 A: 2, 5, 89, 36131

Why are those the prime factors of the number 514,505,440?

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 514,505,440

514,505,440
Factor Arrows
2257,252,720
Factor Arrows
2128,626,360
Factor Arrows
264,313,180
Factor Arrows
232,156,590
Factor Arrows
216,078,295
Factor Arrows
53,215,659
Factor Arrows
8936,131

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, 89, 36131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 89 x 36,131 = 514,505,440

This can also be written as 25 x 51 x 891 x 36,1311 = 514,505,440

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


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