Q: What are the prime factors of the number 314,391,350?

 A: 2, 5, 7, 13, 9871

Why are those the prime factors of the number 314,391,350?

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 314,391,350

314,391,350
Factor Arrows
2157,195,675
Factor Arrows
531,439,135
Factor Arrows
56,287,827
Factor Arrows
7898,261
Factor Arrows
7128,323
Factor Arrows
139,871

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, 5, 7, 13, 9871

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 7 x 13 x 9,871 = 314,391,350

This can also be written as 21 x 52 x 72 x 131 x 9,8711 = 314,391,350

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


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