Q: What are the prime factors of the number 28,440,891?

 A: 3, 19, 59, 2819

Why are those the prime factors of the number 28,440,891?

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 28,440,891

28,440,891
Factor Arrows
39,480,297
Factor Arrows
33,160,099
Factor Arrows
19166,321
Factor Arrows
592,819

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:

3, 19, 59, 2819

We can check our work by multiplying all of the prime factors together: 3 x 3 x 19 x 59 x 2,819 = 28,440,891

This can also be written as 32 x 191 x 591 x 2,8191 = 28,440,891

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


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