Why did you crunch 11111
immense curiosity. already had done 111 and 1111. 111111 is just going to be derivitave of 111 and 1001 (which is lovely), but i am curious about 1111111. i may have done it before but i don't recall. now you've got me wondering all over again when the next prime is in this format..... or maybe there isn't one....