One question that often arises is whether or not it is possible for this nine-digit number to start with a "0." Well, as it turns out, while these nine-digit numbers don't commonly start with "0 ...

Any letter or number to the power of zero is equal to 1. This can be seen in the example of \(j^2 \div j^2\). Subtract the powers, so \(j^2 \div j^2 = j^{2 - 2} = j^0\). Any number or letter ...