Long primes up to 70

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 8 long primes smaller than 70.

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

List#

7, 17, 19, 23, 29, 47, 59, 61

Table#

 12345678
1 - 8717192329475961
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