Q: What are the prime factors of the number 51,411,540?

 A: 2, 3, 5, 41, 20899

Why are those the prime factors of the number 51,411,540?

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 51,411,540

51,411,540
Factor Arrows
225,705,770
Factor Arrows
212,852,885
Factor Arrows
34,284,295
Factor Arrows
5856,859
Factor Arrows
4120,899

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, 41, 20899

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 41 x 20,899 = 51,411,540

This can also be written as 22 x 31 x 51 x 411 x 20,8991 = 51,411,540

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


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