Q: What are the prime factors of the number 76,977?

 A: 3, 2851

Why are those the prime factors of the number 76,977?

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 76,977

76,977
Factor Arrows
325,659
Factor Arrows
38,553
Factor Arrows
32,851

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, 2851

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 2,851 = 76,977

This can also be written as 33 x 2,8511 = 76,977

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


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