Q: What are the prime factors of the number 212,133,420?

 A: 2, 3, 5, 167, 7057

Why are those the prime factors of the number 212,133,420?

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 212,133,420

212,133,420
Factor Arrows
2106,066,710
Factor Arrows
253,033,355
Factor Arrows
317,677,785
Factor Arrows
35,892,595
Factor Arrows
51,178,519
Factor Arrows
1677,057

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, 167, 7057

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 167 x 7,057 = 212,133,420

This can also be written as 22 x 32 x 51 x 1671 x 7,0571 = 212,133,420

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


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