19.
All even numbers except 2 are divisible by 2 and so not prime - that eliminates 16, 18, 20, 28, 36 to leave 19. 33.
33 is divisible by 3 since 3+3 = 6 which is divisible by 3, leaving just 19 which is prime.
Wiki User
β 12y agoThe number 19 it is between 18 and 20 and is a Prime Number.
They are 13 and 19 which are prime numbers
It is 1 because 19 is a prime number
19 is the prime number.
19 is a prime number, so the GCD is 1 * * * Right answer, wrong reason. 19 is indeed a prime but the GCD of 19 and 38, for example, is not 1.
19 is prime.
The first prime number after 18 is 19.
19 YES, 19 is prime because 2,3,4,5,6,7,8,9,do not go in to 19. I stop at nine because 18 is one under 19 and 9 x 2=18. The only factors of 19 are 1 and itself, making it a prime number.
The number 19 it is between 18 and 20 and is a Prime Number.
They are 13 and 19 which are prime numbers
13 is prime 14=2x7, 2 factors 15=3x5, 2 factors 16=24, 4 factors 17 is prime 18=2x32, 3 factors 19 is prime So the answer is 3 (14, 15 and 16)
19 is a prime.
It is 1 because 19 is a prime number
19 is a prime number, so it has no prime factorization.
19 is a prime number.19 is a prime number.19 is a prime number.19 is a prime number.
Probably 19 because it's a prime number
None of them because they are all rational numbers but 19 is a prime number.