Prime Curios!: 85

85
(another Prime Pages' Curiosity)

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(85¹¹ - 85)/11 ± 1 are twin primes. [Luhn]

Between 641 and 114689 (the second smallest Fermat divisor) there exist 85 prime numbers that could conceivably be Fermat divisors.

There are 85 five-digit primes that begin with 85. [Bopardikar]

(There are 2 curios for this number that have not yet been approved by an editor.)