Q: What are the prime factors of the number 212,107,680?

 A: 2, 3, 5, 37, 1327

Why are those the prime factors of the number 212,107,680?

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 212,107,680

212,107,680
Factor Arrows
2106,053,840
Factor Arrows
253,026,920
Factor Arrows
226,513,460
Factor Arrows
213,256,730
Factor Arrows
26,628,365
Factor Arrows
32,209,455
Factor Arrows
3736,485
Factor Arrows
3245,495
Factor Arrows
549,099
Factor Arrows
371,327

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, 37, 1327

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 37 x 1,327 = 212,107,680

This can also be written as 25 x 33 x 51 x 371 x 1,3271 = 212,107,680

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


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