Q: What are the prime factors of the number 331,032,303?

 A: 3, 7, 29, 37, 59, 83

Why are those the prime factors of the number 331,032,303?

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 331,032,303

331,032,303
Factor Arrows
3110,344,101
Factor Arrows
336,781,367
Factor Arrows
75,254,481
Factor Arrows
29181,189
Factor Arrows
374,897
Factor Arrows
5983

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, 7, 29, 37, 59, 83

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 29 x 37 x 59 x 83 = 331,032,303

This can also be written as 32 x 71 x 291 x 371 x 591 x 831 = 331,032,303

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


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