No 1 it is not a Prime number. The definition of a prime number is that it can only have factors of one and itself. Since one already has one then it can not be a prime number.
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A prime number has only one prime factor, and that prime factor is the number itself.
By definition, all prime numbers have exactly two factors. There is not a prime number that has only one factor.
a prime factor
It is 1 which is neither a prime nor a composite number
prime * * * * * No, the only number with just one factor is 1. Each prime has TWO factors: 1 and the prime itself.