This number is a prime.
The largest "prime time" of day on a 12-hour clock in hours, minutes, and seconds (12:59:59). (If you exclude seconds, it's 12:59.) [Punches]
The largest "prime time" of day on a 12-hour clock in hours, minutes, and seconds (12:59:59). (If you exclude seconds, it's 12:59.) [Punches]