Q: What are the prime factors of the number 33,078,912?

 A: 2, 3, 86143

Why are those the prime factors of the number 33,078,912?

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 33,078,912

33,078,912
Factor Arrows
216,539,456
Factor Arrows
28,269,728
Factor Arrows
24,134,864
Factor Arrows
22,067,432
Factor Arrows
21,033,716
Factor Arrows
2516,858
Factor Arrows
2258,429
Factor Arrows
386,143

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, 86143

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 86,143 = 33,078,912

This can also be written as 27 x 31 x 86,1431 = 33,078,912

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


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