Infinity. There's an infinite number of place values, so you can create an infinite number of numbers that start with nine. Some of these will be prime, and since there is an infinite number of numbers starting with nine, there is an infinite number of prime numbers that start with 9 as well.
nine, nine thousand ,
Five is a prime.... Nine is not.
Nine, not including 2.
The prime numbers from one to nine are 2, 3, 5, and 7. There are nine numbers from one to nine. The probability is 4 (the number of prime numbers) over 9 (the total number of numbers). Therefore, the probability of choosing a prime number is 4/9 or about 44 percent.
1,2,3,4,5,6,7,8,9
Neither nine nor sixteen are prime numbers. They are relatively prime to each other.
By dividing it by a number that will make the outcome prime.
100. The first nine prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, and 23.
Forty-nine is not a prime number because it is also divisible by seven. Prime numbers are only divisible by one and themselves.
49 has a prime factorization of 7^2...
Nine can only be relatively prime when compared to another number or set of numbers. 9 is relatively prime to 4, 9 is not relatively prime to 12.