Q: What are the prime factors of the number 331,540,304?

 A: 2, 73, 373, 761

Why are those the prime factors of the number 331,540,304?

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 331,540,304

331,540,304
Factor Arrows
2165,770,152
Factor Arrows
282,885,076
Factor Arrows
241,442,538
Factor Arrows
220,721,269
Factor Arrows
73283,853
Factor Arrows
373761

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, 73, 373, 761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 73 x 373 x 761 = 331,540,304

This can also be written as 24 x 731 x 3731 x 7611 = 331,540,304

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


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