The fourth line from the end was incorrect, so correct it as follows:?8th January 2020
$--------$
There are rules for twin primes with more than two digits.
? The end of
$n_m$ is limited to [
$1,7,9$ ].
? The end of
$n_p$ is limited to [
$3,9,1$ ].
This rule can be understood with a little thought. This rule can be used to eliminate unnecessary calculations, but it has not been applied this time.
