Q: What are the prime factors of the number 211,212,156?

 A: 2, 3, 41, 151, 2843

Why are those the prime factors of the number 211,212,156?

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 211,212,156

211,212,156
Factor Arrows
2105,606,078
Factor Arrows
252,803,039
Factor Arrows
317,601,013
Factor Arrows
41429,293
Factor Arrows
1512,843

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, 41, 151, 2843

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 41 x 151 x 2,843 = 211,212,156

This can also be written as 22 x 31 x 411 x 1511 x 2,8431 = 211,212,156

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


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