Q: What are the prime factors of the number 2,135,727?

 A: 3, 11, 17, 47

Why are those the prime factors of the number 2,135,727?

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 2,135,727

2,135,727
Factor Arrows
3711,909
Factor Arrows
3237,303
Factor Arrows
379,101
Factor Arrows
326,367
Factor Arrows
38,789
Factor Arrows
11799
Factor Arrows
1747

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, 11, 17, 47

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 17 x 47 = 2,135,727

This can also be written as 35 x 111 x 171 x 471 = 2,135,727

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


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