23, 29
Chat with our AI personalities
Remember 1 is not a prime number because it is only divisible by itself. 2, 3, 5, 7, 11, 13, 17, 19 These are the prime numbers between 0 and 20. In short, there are 9 prime numbers between 0 and 20.
4 and 5
There are 4 prime numbers between 20 and 40.
23 29.
They are 23 and 29.