prime
prime
7 is a prime number but 1 is neither prime nor composite.
prime
3 * 7 = 21 21 is not prime
511 = 73 x 7 therefore, it is a Composite number!
Composite. Its prime factors are 2×2×7.
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. 227 is prime.
7 is only divisible by itself and 1, so it is a prime number. 1 is neither composite nor prime.
7 is prime.
prime
It is a prime number