Q: What are the prime factors of the number 51,152,256?

 A: 2, 3, 19, 41

Why are those the prime factors of the number 51,152,256?

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 51,152,256

51,152,256
Factor Arrows
225,576,128
Factor Arrows
212,788,064
Factor Arrows
26,394,032
Factor Arrows
23,197,016
Factor Arrows
21,598,508
Factor Arrows
2799,254
Factor Arrows
2399,627
Factor Arrows
3133,209
Factor Arrows
344,403
Factor Arrows
314,801
Factor Arrows
19779
Factor Arrows
1941

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, 19, 41

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 3 x 3 x 3 x 19 x 19 x 41 = 51,152,256

This can also be written as 27 x 33 x 192 x 411 = 51,152,256

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


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