September has 19 days that are prime numbers Note: 1 is not prime or composite
11 and 13
Two.
There are 5 prime numbers from 10 to 25:11, 13, 17, 19 and 23
Prime numbers before 10 are 2 3 5 7 So 4
Four. The prime numbers between 10 and 21 are 11, 13, 17, and 19.
The Prime numbers between 1 and 10 are 2, 3, 5, and 7.
There are more than 10 prime numbers
10 does not have 6 prime numbers.
There are 4 prime numbers, 2, 3, 5 and 7.
There are 4 prime numbers between 10 and 20. They are 11, 13, 17, and 19.
There are infinitely many prime numbers and so it is impossible to list them.