Q: What are the prime factors of the number 311,302,332?

 A: 2, 3, 11, 23, 11393

Why are those the prime factors of the number 311,302,332?

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 311,302,332

311,302,332
Factor Arrows
2155,651,166
Factor Arrows
277,825,583
Factor Arrows
325,941,861
Factor Arrows
38,647,287
Factor Arrows
32,882,429
Factor Arrows
11262,039
Factor Arrows
2311,393

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, 23, 11393

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 11 x 23 x 11,393 = 311,302,332

This can also be written as 22 x 33 x 111 x 231 x 11,3931 = 311,302,332

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


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