Q: What are the prime factors of the number 68,213,678?

 A: 2, 13, 179, 14657

Why are those the prime factors of the number 68,213,678?

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 68,213,678

68,213,678
Factor Arrows
234,106,839
Factor Arrows
132,623,603
Factor Arrows
17914,657

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, 13, 179, 14657

We can check our work by multiplying all of the prime factors together: 2 x 13 x 179 x 14,657 = 68,213,678

This can also be written as 21 x 131 x 1791 x 14,6571 = 68,213,678

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


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