Q: What are the prime factors of the number 66,433,338?

 A: 2, 3, 23, 89, 601

Why are those the prime factors of the number 66,433,338?

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 66,433,338

66,433,338
Factor Arrows
233,216,669
Factor Arrows
311,072,223
Factor Arrows
33,690,741
Factor Arrows
31,230,247
Factor Arrows
2353,489
Factor Arrows
89601

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, 23, 89, 601

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 23 x 89 x 601 = 66,433,338

This can also be written as 21 x 33 x 231 x 891 x 6011 = 66,433,338

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


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