Q: What are the prime factors of the number 212,055,500?

 A: 2, 5, 31, 13681

Why are those the prime factors of the number 212,055,500?

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 212,055,500

212,055,500
Factor Arrows
2106,027,750
Factor Arrows
253,013,875
Factor Arrows
510,602,775
Factor Arrows
52,120,555
Factor Arrows
5424,111
Factor Arrows
3113,681

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, 5, 31, 13681

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 31 x 13,681 = 212,055,500

This can also be written as 22 x 53 x 311 x 13,6811 = 212,055,500

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


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