Q: What are the prime factors of the number 11,939,562?

 A: 2, 3, 19, 431

Why are those the prime factors of the number 11,939,562?

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 11,939,562

11,939,562
Factor Arrows
25,969,781
Factor Arrows
31,989,927
Factor Arrows
3663,309
Factor Arrows
3221,103
Factor Arrows
373,701
Factor Arrows
324,567
Factor Arrows
38,189
Factor Arrows
19431

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, 431

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 19 x 431 = 11,939,562

This can also be written as 21 x 36 x 191 x 4311 = 11,939,562

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


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