Q: What are the prime factors of the number 3,310,979?

 A: 7, 197

Why are those the prime factors of the number 3,310,979?

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 3,310,979

3,310,979
Factor Arrows
7472,997
Factor Arrows
767,571
Factor Arrows
79,653
Factor Arrows
71,379
Factor Arrows
7197

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, 197

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 7 x 7 x 197 = 3,310,979

This can also be written as 75 x 1971 = 3,310,979

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


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