Q: What are the prime factors of the number 313,114,410?

 A: 2, 3, 5, 7, 23

Why are those the prime factors of the number 313,114,410?

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 313,114,410

313,114,410
Factor Arrows
2156,557,205
Factor Arrows
352,185,735
Factor Arrows
317,395,245
Factor Arrows
35,798,415
Factor Arrows
31,932,805
Factor Arrows
5386,561
Factor Arrows
755,223
Factor Arrows
77,889
Factor Arrows
71,127
Factor Arrows
7161
Factor Arrows
723

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, 3, 5, 7, 23

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 5 x 7 x 7 x 7 x 7 x 7 x 23 = 313,114,410

This can also be written as 21 x 34 x 51 x 75 x 231 = 313,114,410

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


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