Yes, all primes over three are either of the form 6n - 1 or 6n + 1. So the only way for them to be prime pairs is for one to be of the same n, one -1 and the other +1; so the number between them is always of the form 6n, and thus always divisible by six.
Chat with our AI personalities
No, 51 and 53 are not twin primes. Twin primes are a pair of prime numbers that have a difference of 2 between them. In this case, 53 is a prime number, but 51 is not a prime number as it can be divided by 3. Twin primes examples include 3 and 5, 11 and 13, and 17 and 19.
The only twin primes between 70 and 100 are 71 and 73.
Actually, 13 and 15 are not twin primes because twin primes are pairs of prime numbers that have a difference of 2 between them. In this case, 13 is a prime number, but 15 is not a prime number because it can be divided by 3 and 5 in addition to 1 and itself. Therefore, 13 and 15 do not meet the criteria to be considered twin primes.
One pair of twin primes between 135 and 145
41 and 43 are only the pair of Twin primes between 40 and 50.