Q: What are the prime factors of the number 212,223,321?

 A: 3, 101, 8647

Why are those the prime factors of the number 212,223,321?

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 212,223,321

212,223,321
Factor Arrows
370,741,107
Factor Arrows
323,580,369
Factor Arrows
37,860,123
Factor Arrows
32,620,041
Factor Arrows
3873,347
Factor Arrows
1018,647

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, 101, 8647

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 101 x 8,647 = 212,223,321

This can also be written as 35 x 1011 x 8,6471 = 212,223,321

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


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