It is 47.
41, 43, 47
41, 43, and 47
No.41, 43 and 47 are all prime
21 is not a prime number.
Forty-five is a composite number because it is not prime. Any number that is not prime is a composite number...Examples:4451002002256,0001,000,000
The prime numbers between twenty and forty are: 23 29 31 37.
Forty-nine is not a Prime number because it is also divisible by seven. Prime numbers are only divisible by one and themselves.
No, it is composite.