Q: What are the prime factors of the number 19,705,983?

 A: 3, 11, 19, 53, 593

Why are those the prime factors of the number 19,705,983?

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 19,705,983

19,705,983
Factor Arrows
36,568,661
Factor Arrows
11597,151
Factor Arrows
1931,429
Factor Arrows
53593

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, 19, 53, 593

We can check our work by multiplying all of the prime factors together: 3 x 11 x 19 x 53 x 593 = 19,705,983

This can also be written as 31 x 111 x 191 x 531 x 5931 = 19,705,983

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


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