Quote:
Originally Posted by retina
Given that the number you posted is divisible by 2 then that means you are correct, it isn't part of any prime sequence.
Can I now also guess an even number and claim that it doesn't belog [sic] to any twin prime?

yes I guess that the number 6 x 10 ^ (900.000.000.000) + 18 x 10 ^ ( 450.000.000.000) + 1 also is not belong to twin prime number