Q: What are the prime factors of the number 77,706?

 A: 2, 3, 1439

Why are those the prime factors of the number 77,706?

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 77,706

77,706
Factor Arrows
238,853
Factor Arrows
312,951
Factor Arrows
34,317
Factor Arrows
31,439

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, 3, 1439

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 1,439 = 77,706

This can also be written as 21 x 33 x 1,4391 = 77,706

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


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