3 is a numeral,number, and a integer the proceeds 2 and preceeds 4.
3 is a prime number. It is the smallest odd prime. 3 is the smallest Mersenne prime and Fermat prime. A number is divisible by 3 if the sum of the digits is. It is the 2nd prime, and the 4th term in the Fibonacci Sequence.
If you multiply a number by 3, it is said that you tripled the number. 3 is also the smallest number that is not a superiorhighlycomposite number. Cubing a number involves multiplying a number by itself 3 times. Also, 2 famous constants, pi and e both round to 3.