Q: What are the prime factors of the number 41,216,256?

 A: 2, 3, 67, 89

Why are those the prime factors of the number 41,216,256?

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 41,216,256

41,216,256
Factor Arrows
220,608,128
Factor Arrows
210,304,064
Factor Arrows
25,152,032
Factor Arrows
22,576,016
Factor Arrows
21,288,008
Factor Arrows
2644,004
Factor Arrows
2322,002
Factor Arrows
2161,001
Factor Arrows
353,667
Factor Arrows
317,889
Factor Arrows
35,963
Factor Arrows
6789

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, 67, 89

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 3 x 3 x 3 x 67 x 89 = 41,216,256

This can also be written as 28 x 33 x 671 x 891 = 41,216,256

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


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