360

This number is a composite.

+ (360 repeated 360 times) * 2^360 + 360 - 1 is prime. [Noll]

+ Bryant Tuckerman found the Mersenne prime M19937 using an IBM360.

+ The 360-sided regular polygon is the only one in which the angles (in degrees) are prime, i.e., 179. [Petrov]

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