If we can find one factor, besides '1' and the number itself, then the number is not prime.
There may be more factors, but all we need is one in order to prove it 'not prime'.
Looking at '775', we notice that it ends in '5'. This tells us that it's a multiple of '5'; in other words,
'5' is a 'factor' of 775.
That's all it takes. 775 is composite, not prime.
775 is not a prime number, because 775 is divisible by 5. In fact, the prime divisors of 775 are 5, 5, and 31.
775 is NOT a prime number.775 = 5^2*31.
It is not a prime number, it is a composite number.
It is prime
86 is not a prime number, so is a composite.
It is a Prime number, and therefore not a composite number.211 is a prime number.
No 168 is not a prime number it is a composite number
The number is not COMPOSITE. Instead, it is a prime number.
A prime number has two factors, a composite number has more than two.
Composite (the only even number that is prime is2).
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.
Prime.