Q: What are the prime factors of the number 51,530,388?

 A: 2, 3, 7, 13, 47189

Why are those the prime factors of the number 51,530,388?

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 51,530,388

51,530,388
Factor Arrows
225,765,194
Factor Arrows
212,882,597
Factor Arrows
34,294,199
Factor Arrows
7613,457
Factor Arrows
1347,189

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, 7, 13, 47189

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 13 x 47,189 = 51,530,388

This can also be written as 22 x 31 x 71 x 131 x 47,1891 = 51,530,388

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


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