Q: What are the prime factors of the number 17,765,979?

 A: 3, 7, 11, 10987

Why are those the prime factors of the number 17,765,979?

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 17,765,979

17,765,979
Factor Arrows
35,921,993
Factor Arrows
7845,999
Factor Arrows
7120,857
Factor Arrows
1110,987

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, 7, 11, 10987

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 11 x 10,987 = 17,765,979

This can also be written as 31 x 72 x 111 x 10,9871 = 17,765,979

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


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