Yes 405 is composite. Its factors are 1,5,81,and 405. There could be more but i don't know it! =)
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It's clearly not prime; no even number is prime. It is composite.
No, it is not a composite number, it's a prime number.
Composite A prime number is a number that has only two factors (itself and one) A composite number is a number that has more than two factors.
Composite. Since it is very easy to decipher if 34 is prime or composite, I assume you are unfamiliar with the definitions of prime and composite. A prime number is a number that has only two factors: 1 and itself. A composite number is a number that has more than 2 factors: 1, itself, and other(s). You can immediately tell that 34 is composite because it is even, and the number two is the only EVEN number that is prime.
293 is a prime number.