150

This number is a composite.

+ 2150 - 3 and 2150 - 5 are twin primes. [Kulsha]

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

+ Smallest base such where there is a known titanic generalized Fermat prime. [Xayah]

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