Q: What are the prime factors of the number 212,342,405?

 A: 5, 11, 31, 124541

Why are those the prime factors of the number 212,342,405?

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 212,342,405

212,342,405
Factor Arrows
542,468,481
Factor Arrows
113,860,771
Factor Arrows
31124,541

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:

5, 11, 31, 124541

We can check our work by multiplying all of the prime factors together: 5 x 11 x 31 x 124,541 = 212,342,405

This can also be written as 51 x 111 x 311 x 124,5411 = 212,342,405

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


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