Q: What are the prime factors of the number 313,261,216?

 A: 2, 9789413

Why are those the prime factors of the number 313,261,216?

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 313,261,216

313,261,216
Factor Arrows
2156,630,608
Factor Arrows
278,315,304
Factor Arrows
239,157,652
Factor Arrows
219,578,826
Factor Arrows
29,789,413

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, 9789413

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 9,789,413 = 313,261,216

This can also be written as 25 x 9,789,4131 = 313,261,216

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


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