Q: What are the prime factors of the number 51,005,600?

 A: 2, 5, 103, 619

Why are those the prime factors of the number 51,005,600?

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 51,005,600

51,005,600
Factor Arrows
225,502,800
Factor Arrows
212,751,400
Factor Arrows
26,375,700
Factor Arrows
23,187,850
Factor Arrows
21,593,925
Factor Arrows
5318,785
Factor Arrows
563,757
Factor Arrows
103619

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, 619

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 5 x 103 x 619 = 51,005,600

This can also be written as 25 x 52 x 1031 x 6191 = 51,005,600

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


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