Q: What are the prime factors of the number 51,931,396?

 A: 2, 11, 17, 69427

Why are those the prime factors of the number 51,931,396?

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 51,931,396

51,931,396
Factor Arrows
225,965,698
Factor Arrows
212,982,849
Factor Arrows
111,180,259
Factor Arrows
1769,427

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, 11, 17, 69427

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 17 x 69,427 = 51,931,396

This can also be written as 22 x 111 x 171 x 69,4271 = 51,931,396

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


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