5,7,11,13,17,19,23,29,31,37,41 and 43
prime numbers between 4 and 10: 5 & 7
There are 4 prime numbers between 10 and 20. They are 11, 13, 17, and 19.
45 = 3*3*5. So there are only three primes required (or possible). 1 is NOT a prime.
2 3 5 are prime numbers.
There are 4 prime numbers between 32 and 48: 37 41 43 47.
There are 4 prime numbers between 190 and 200: 191 193 197 199.
5
The prime numbers with square roots between 4 and 5 are 5 and 7.
There are 4 prime numbers between 36 and 49. 37, 41, 43, and 47.
There are 4 prime numbers, 2, 3, 5 and 7.
Numbers are either prime or they aren't. In this case, 45 is divisible by 3 and 15; sixty-four goes into 2, 4, 8 and 32. The term "relatively prime" compares two numbers and their common factors. If the GCF of the two numbers is 1, then they are "relatively prime."
The prime numbers between 4 and 20 are 5, 7, 11, 13, 17 and 19. Their sum is 72.