Q: What are the prime factors of the number 3,890,816?

 A: 2, 113, 269

Why are those the prime factors of the number 3,890,816?

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 3,890,816

3,890,816
Factor Arrows
21,945,408
Factor Arrows
2972,704
Factor Arrows
2486,352
Factor Arrows
2243,176
Factor Arrows
2121,588
Factor Arrows
260,794
Factor Arrows
230,397
Factor Arrows
113269

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, 113, 269

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 113 x 269 = 3,890,816

This can also be written as 27 x 1131 x 2691 = 3,890,816

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


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