Q: What are the prime factors of the number 331,141,304?

 A: 2, 13, 23, 463

Why are those the prime factors of the number 331,141,304?

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 331,141,304

331,141,304
Factor Arrows
2165,570,652
Factor Arrows
282,785,326
Factor Arrows
241,392,663
Factor Arrows
133,184,051
Factor Arrows
13244,927
Factor Arrows
2310,649
Factor Arrows
23463

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, 13, 23, 463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 13 x 23 x 23 x 463 = 331,141,304

This can also be written as 23 x 132 x 232 x 4631 = 331,141,304

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


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