23 29.
They are 23 and 29.
25 prime numbers in that range.
Euclid (c. 300 BC) was one of the first to prove that there are infinitely many prime numbers. His proof was essentially to assume that there were a finite number of prime numbers, and arrive at a contradiction. Thus, there must be infinitely many prime numbers. Specifically, he supposed that if there were a finite number of prime numbers, then if one were to multiply all those prime numbers together and add 1, it would result in a number that was not divisible by any of the (finite number of) prime numbers, thus would itself be a prime number larger than the largest prime number in the assumed list - a contradiction.
Prime and relatively prime numbers all have a GCF of 1.
It is impossible to list all the prime numbers as there are an infinite number of them. The list of prime numbers starts: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ... Suppose you could list all the prime numbers and have done so - there is no prime number which is not on the list. Multiply them all together and add 1. This number is not divisible by any of the listed prime numbers as there is always a remainder of 1. So either this new number is a prime number, or there is another prime number not listed which will divide into it. Which means that the list was not all the prime numbers; meaning it is impossible to list all the prime numbers.
It is impossible to list the infinite number of prime numbers and composite numbers.
list the prime numbers between one and twenty
There is an infinite amount of prime numbers all of which are odd numbers
That's an infinite list.
It is impossible to list the infinite number of higher prime numbers.
That's an infinite list.
Prime numbers never stop, it is impossible to list them all.
18 prime numbers
That's an infinite list.
That's an infinite list.
That's an infinite list.