Q: What are the prime factors of the number 51,413,504?

 A: 2, 100417

Why are those the prime factors of the number 51,413,504?

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 51,413,504

51,413,504
Factor Arrows
225,706,752
Factor Arrows
212,853,376
Factor Arrows
26,426,688
Factor Arrows
23,213,344
Factor Arrows
21,606,672
Factor Arrows
2803,336
Factor Arrows
2401,668
Factor Arrows
2200,834
Factor Arrows
2100,417

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, 100417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 100,417 = 51,413,504

This can also be written as 29 x 100,4171 = 51,413,504

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


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