No. The smallest prime factor is 2.
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Because 0 has EVERY number as a factor(0*X). A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
No, neither are primes. 1 has only 1 factor (not two, and therefore isn't prime), while 0 has an infinite amount (and so definitely isn't prime).
It is a factor of 132, not a prime factor.
No. It is a prime number, so its only factors are 1 and 3.
9 is not a prime factor, but it does have one prime factor, which is three. Prime factors are factors of a number that are prime.