A personal code for an online account must be 6 characters, either letters or numbers, which can repeat. How many codes are possible?

Respuesta :

56800235584 total possibilities
multiply each possibility per character to find the total possibilities of codes
26 lovercase letters +26 uppercase letters + 10 digits =62 possibilities per character.
62*62*62*62*62*62 =56800235584 possibilities