1 is a prime number.
compostie
Neither. The property of prime or composite is not defined for 1, just as it is not defined for 0 or 0.5.
Prime
prime no
Prime
prime
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.
Prime
prime
61 is prime.
Prime