Q: What are the prime factors of the number 215,545,338?

 A: 2, 3, 79, 151579

Why are those the prime factors of the number 215,545,338?

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 215,545,338

215,545,338
Factor Arrows
2107,772,669
Factor Arrows
335,924,223
Factor Arrows
311,974,741
Factor Arrows
79151,579

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, 79, 151579

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 79 x 151,579 = 215,545,338

This can also be written as 21 x 32 x 791 x 151,5791 = 215,545,338

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


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