23 is the smallest prime number greater than 20.
23 and 29 are the prime numbers between 20 and 30.
There are many greater than 20, a better questions would've been "what prime numbers are less than 20". The first prime number greater than 20 is 23. The prime numbers to 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
The numbers 23 and 29 are prime.
Any prime number to the eighth power like 256, 6561 or 390625.
23 is the smallest prime number greater than 20.
23
27 is the prime number and also 41.
23
23 and 29 are the prime numbers between 20 and 30.
20 is the next number greater than 19. The next prime number greater than 19 is 23.
23 and 29
25 is the number not less than 20, not greater than 40, not divisible by 2 3 or 7, and not a prime number.
23 29 31.
20 have greater than 2
21 = 3x7 ... not prime. 22 = 2x11 ... not prime. 23 is prime. 23.
No number is less than 20 and greater than 40, but if you switch them around, your answer is 25.