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All prime numbers over 3 are either 6n - 1 or 6n + 1.
That's an infinite list.
They are: 9/1000 itself and its equivalent fractions such as 18/2000
Yes, all prime numbers over 3 are either of the form 6n - 1 or 6n + 1.
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.