28

Twenty-eight is the natural number following 27 and preceding 29.

The sum of the first five prime numbers is 28.

Twenty-eight is the number of dominoes in standard domino sets.

The atomic number of nickel is 28.

Twenty-eight is the postal code of the province of Madrid, in Spain.

The planet Saturn revolves around the Sun in approximately 28 years.

In the year 28, King Daru of Baekje succeeded the throne of Baekje in Korean peninsula.

2006 - 1978 = 28

28 is how old Max is today.

Happy Birthday Max!