Post date: Mar 13, 2020 12:28:34 PM
The only cube (23) that is one less than a square (32 – 1).
The only prime power that differs by one from another prime power.
One of two Fibonacci numbers that is a cube.
The first number alphabetically (in English!).
A number is divisible by 8 if and only if its last 3 digits are (e.g., 15400 is divisible by 8 because 400 is).
(108 - 8)/8 is prime.
(8^8+88888)/8 is prime. Note that eight 8s are used.