3167
This number is a prime.
On Friday, 7-13-1951, an unlucky date for prime numbers, AT & SF steam locomotive #3167 was lost in the Kaw River
flood. It had been deliberately parked on an important Topeka railroad bridge in an ill-fated attempt to stabilize
the connection. [Goelz]
The sum of all 3-digit primes beginning with 1 is a prime number, i.e., 101+103+…+199=3167. [Loungrides]
The smallest prime that is inert in all imaginary quadratic
fields with unique factorization (that is, in all fields
Q(sqrt(-d)) where d is a Heegner number). [Blom]
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