Q: What are the prime factors of the number 28,809,738?

 A: 2, 3, 19, 84239

Why are those the prime factors of the number 28,809,738?

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 28,809,738

28,809,738
Factor Arrows
214,404,869
Factor Arrows
34,801,623
Factor Arrows
31,600,541
Factor Arrows
1984,239

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, 19, 84239

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 19 x 84,239 = 28,809,738

This can also be written as 21 x 32 x 191 x 84,2391 = 28,809,738

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


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