Q: What are the prime factors of the number 331,032,306?

 A: 2, 3, 11, 607, 8263

Why are those the prime factors of the number 331,032,306?

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 331,032,306

331,032,306
Factor Arrows
2165,516,153
Factor Arrows
355,172,051
Factor Arrows
115,015,641
Factor Arrows
6078,263

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, 11, 607, 8263

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 607 x 8,263 = 331,032,306

This can also be written as 21 x 31 x 111 x 6071 x 8,2631 = 331,032,306

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


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