Everything is 6 or 7. Even when it isn't.
Can you answer using only 6 & 7?
EXAMPLE
What is the lowest prime number?
The answer is 2. You cannot type 2. You only have 6 and 7.
One way to make 2
7 − 6 + 7 − 6 = 2
Only 6, 7, + − × ÷ ( )
