Q: What are the prime factors of the number 39,697,911?

 A: 3, 11, 73, 1831

Why are those the prime factors of the number 39,697,911?

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 39,697,911

39,697,911
Factor Arrows
313,232,637
Factor Arrows
34,410,879
Factor Arrows
31,470,293
Factor Arrows
11133,663
Factor Arrows
731,831

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, 73, 1831

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 11 x 73 x 1,831 = 39,697,911

This can also be written as 33 x 111 x 731 x 1,8311 = 39,697,911

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


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