Twin primes are prime numbers with a difference of 2.
11 and 13 are twin prime numbers (13-11 = 2), 31 and 37 are not.
37 and 79
They are: 31 and 37
the square root of 37
No.
31 37 41 43 47
13 17 31 37 71 73 79 97
The GCF is 1.
1 + 37 = 387 + 31 = 3819 + 19 = 38
11 13, 31 17, 71 37, 73 79, 97
23+29+31+37+41+47+53+59 = 320
They are: 31 37 41 43 47 53 59 61 and 67
31 and 37 are the only two so there are two primes between 30 and 40.