150

150 = 2 x 3 x 5².

2¹⁵⁰ – 3 and 2¹⁵⁰ – 5 are twin primes.

150 is the largest gap between consecutive twin prime pairs less than a thousand. It occurs between {659, 661} and {809, 811}.

Each internal angle of a regular 12-sided polygon (dodecagon) is 150^o.


Sesquicentennial is a period of 150 years.

Source: Prime Curios!