Irregular prime

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This article defines a property that can be evaluated for a prime number. In other words, every prime number either satisfies this property or does not satisfy this property.
View other properties of prime numbers | View other properties of natural numbers


An irregular prime is a prime number greater than 2 that is not a regular prime. Note that 2 is neither regular nor irregular.


Initial examples

37, 59, 67, 101, 103, 131, 149, 157, 233, 257, 263, [SHOW MORE]View list on OEIS