I know, I'm 2 years late, but still I decided to join the fun.
I like programming challenges, so I decided to go for the second tsk of finding all of them.
Here is my (java) code:
for(int S = 1; S < 10; S++) {
for(int T = 1; T < 10; T += 2) {
if(S == 5)
continue;
if(T == S)
continue;
for(int E = 0; E < 10; E++) {
if(E == S || E == T)
continue;
for(int M = 0; M < 10; M++) {
if(M == S || M == T || M == E)
continue;
for(int I = 0; I < 10; I++) {
if(I == S || I == T || I == E || I == M)
continue;
int number = T+10*I+100*M+1000*E+10000*E+100000*T+1000000*S;
int maxFac = (int)Math.sqrt(number);
boolean is = true;
for(int i = 3; i < maxFac; i+=2) {
if(number % i == 0) {
is = false;
break;
}
}
if(is) {
System.out.println(number);
}
}
}
}
}
}
The list of primes following that structure is too long(1540) to show here, but I can confirm that the lowest prime is in fact 1300253, followed by
1300283, 1300423, 1300463, 1300573, 1300583, 1300843, 1300963, …
…, 9788057, 9788137, 9788347, 9788357, 9788417, 9788437, 9788567, 9788657
RE: Brainsteem: A Prime STEEMIT Number Puzzle