167
This number is a prime.
Just showing those entries submitted by 'Firoozbakht': (Click here to show all)
The smallest emirp p such that reversal(p*reversal(p)) is
prime. [Firoozbakht]
191^181 = 179^173 (mod 167). Note that 167, 173, 179, 181 and 191 are five consecutive primes. [Firoozbakht]
The smallest emirp p such that both numbers prime(p) and
prime(prime(p)) are emirp. [Firoozbakht]
(There is one curio for this number that has not yet been approved by an editor.)
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