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# Why isn't 2001 a prime number?

Updated: 10/17/2022

Wiki User

13y ago

Because 2001 is exactly divisible by three !

Wiki User

13y ago

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Q: Why isn't 2001 a prime number?
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### Is infinity a prime or composite?

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there isnt one because 27 is a prime number. and come one, really? thats like 3rd grade stuff!!

### What is the smallest number that looks prime but really isnt?

It isn't clear what you mean with "looks like prime". What would your criteria be to "look like a prime"? The first prime numbers are:2, 3, 5, 7, 11, 13, 17, 23, 29, 31 ...Other positive integers (larger than 1) are composite numbers. The number 1 has a special role, as the identity element of multiplication. It is neither a prime number nor a composite number.