Long primes up to 181

Long primes: Long prime in base b is a prime number p such that the formula (b^(p-1)-1)/p (where p does not divide b) gives a cyclic number.

There is 16 long primes smaller than 181.

Checkout long primes up to: 100, 500, 1000, 10000.

7, 17, 19, 23, 29, 47, 59, 61, 97, 109, 113, 131, 149, 167, 179, 181

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• All long primes