9 is the Prime number.
19 is prime.
19 is the prime number.
19 is the prime number.
19
19
19 is the prime number out of the provided choices.
It is19 because it has only two factors
19 is the only one that only has 1 and itself as factors. It is the prime number.
Any number whose digits total 3, 6 or 9 is divisible by 3 and, therefore, not prime.
105/27 = 35/9 = 38/9
There are 9 prime numbers from 0 to 27:2, 3, 5, 7, 11, 13, 17, 19 and 23
The factors of 9 are: 1, 3, and 9.The only prime factor of 9 is: 3.The factors of 27 are: 1, 3, 9, and 27.The only prime factor of 27 is: 3.