Q: What are the prime factors of the number 68,666,689?

 A: 7, 13, 17, 373

Why are those the prime factors of the number 68,666,689?

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 68,666,689

68,666,689
Factor Arrows
79,809,527
Factor Arrows
71,401,361
Factor Arrows
13107,797
Factor Arrows
176,341
Factor Arrows
17373

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:

7, 13, 17, 373

We can check our work by multiplying all of the prime factors together: 7 x 7 x 13 x 17 x 17 x 373 = 68,666,689

This can also be written as 72 x 131 x 172 x 3731 = 68,666,689

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


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