Q: What are the prime factors of the number 28,511,362?

 A: 2, 11, 19, 68209

Why are those the prime factors of the number 28,511,362?

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 28,511,362

28,511,362
Factor Arrows
214,255,681
Factor Arrows
111,295,971
Factor Arrows
1968,209

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, 11, 19, 68209

We can check our work by multiplying all of the prime factors together: 2 x 11 x 19 x 68,209 = 28,511,362

This can also be written as 21 x 111 x 191 x 68,2091 = 28,511,362

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


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