Q: What are the prime factors of the number 312,212,205?

 A: 3, 5, 71, 32573

Why are those the prime factors of the number 312,212,205?

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 312,212,205

312,212,205
Factor Arrows
3104,070,735
Factor Arrows
334,690,245
Factor Arrows
311,563,415
Factor Arrows
52,312,683
Factor Arrows
7132,573

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:

3, 5, 71, 32573

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 71 x 32,573 = 312,212,205

This can also be written as 33 x 51 x 711 x 32,5731 = 312,212,205

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


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