Q: What are the prime factors of the number 122,612,256?

 A: 2, 3, 13, 32749

Why are those the prime factors of the number 122,612,256?

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 122,612,256

122,612,256
Factor Arrows
261,306,128
Factor Arrows
230,653,064
Factor Arrows
215,326,532
Factor Arrows
27,663,266
Factor Arrows
23,831,633
Factor Arrows
31,277,211
Factor Arrows
3425,737
Factor Arrows
1332,749

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, 13, 32749

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 32,749 = 122,612,256

This can also be written as 25 x 32 x 131 x 32,7491 = 122,612,256

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


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