I don't know what "didget" means in your context. But on the off chance you meant "digit" try this: If you want an even number, then the last digit has to be 0, 2, 4, 6, or 8. Let's try 8. 13 minus 8 is 5, so that means the other 5 digits of the 6 digit number would have to be 1s.
111118 works. 222232 also works, as does a myriad of others.
John
My calculator said it, I believe it, that settles it
