I've heard ppl say it is and it isn't, so is it a prime number? :P
No, it's not.
yeah, I was kind of leaning towards that it's not a prime number, thanks for confirming :)
Excluding 1 from the definition of prime number makes it easier to state many theorems in number theory.
For example, every integer can be factored uniquely into a product of (unique) powers of primes. If 1 was called a prime, its exponent could be anything.
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