Q: What are the prime factors of the number 212,389,856?

 A: 2, 7, 948169

Why are those the prime factors of the number 212,389,856?

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 212,389,856

212,389,856
Factor Arrows
2106,194,928
Factor Arrows
253,097,464
Factor Arrows
226,548,732
Factor Arrows
213,274,366
Factor Arrows
26,637,183
Factor Arrows
7948,169

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, 7, 948169

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 948,169 = 212,389,856

This can also be written as 25 x 71 x 948,1691 = 212,389,856

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


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