Q: What are the prime factors of the number 308,305,312?

 A: 2, 7, 37, 37199

Why are those the prime factors of the number 308,305,312?

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 308,305,312

308,305,312
Factor Arrows
2154,152,656
Factor Arrows
277,076,328
Factor Arrows
238,538,164
Factor Arrows
219,269,082
Factor Arrows
29,634,541
Factor Arrows
71,376,363
Factor Arrows
3737,199

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, 7, 37, 37199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 37 x 37,199 = 308,305,312

This can also be written as 25 x 71 x 371 x 37,1991 = 308,305,312

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


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