Q: What are the prime factors of the number 212,000,103?

 A: 3, 7, 31, 73, 1487

Why are those the prime factors of the number 212,000,103?

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 212,000,103

212,000,103
Factor Arrows
370,666,701
Factor Arrows
323,555,567
Factor Arrows
73,365,081
Factor Arrows
31108,551
Factor Arrows
731,487

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, 7, 31, 73, 1487

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 31 x 73 x 1,487 = 212,000,103

This can also be written as 32 x 71 x 311 x 731 x 1,4871 = 212,000,103

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


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