1879
This number is a prime.
Albert Einstein was born on Pi Day, 1879 (an emirp year). [Green]
1879 is the smallest prime factor of the Woodall number W20, (20*2^20-1 or in full 20971519).
The smallest emirp whose octal (base 8) scale
representation corresponds in base ten to an emirp with all
the prime digits: 1879 = 35278. [Beedassy]
The "Hall effect" was discovered by Edwin Hall in 1879.
1879 and 2081 are the smallest pair of prime numbers with
Cyclops squares that are anagrams of each other (3530641
and 4330561). [Gaydos]
1879 divides the total number of undirected knight tours on an 8x8 chessboard. [McKay]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell