Wolstenholme prime 
Named after  

Publication year  1995^{[1]} 
Author of publication  McIntosh, R. J. 
No. of known terms  2 
Conjectured no. of terms  Infinite 
First terms  16843, 2124679 
Largest known term  2124679 

In
Interest in these primes first arose due to their connection with
The only two known Wolstenholme primes are 16843 and 2124679 (sequence A088164 in the
Unsolved problem in mathematics: Are there any Wolstenholme primes other than 16843 and 2124679? 
Wolstenholme prime can be defined in a number of equivalent ways.
A Wolstenholme prime is a prime number p > 7 that satisfies the
where the expression in
A Wolstenholme prime is a prime p that divides the numerator of the
A Wolstenholme prime is a prime p such that (p, p–3) is an
A Wolstenholme prime is a prime p such that^{[9]}
i.e. the numerator of the