304 (number)

304 is the natural number following 303 and preceding 305.

In mathematics

 * 304 is an even composite number with two prime factors.
 * 304 is the sum of consecutive primes in two different ways: It is the sum of 41+43+47+53+59+61 and of 23+29+31+37+41+43+47+53.
 * 304 is a primitive semiperfect number meaning that it is a semiperfect number that is not divisible by any other semiperfect number.
 * 304 is an untouchable number meaning that it is not equal to the sum of any number’s proper divisors.
 * 304 is a nontotient number meaning that it is an even number where phi(x) cannot result in that number.