The only known Wilson primes are 5 , 13 , and 563 ; if any others exist , they must be greater than 2 .
The only known Wilson primes are 5 , 13 , and 563 ( sequence [ A007540 ] in OEIS ) ; if any others exist , they must be greater than 5 × 108 .
[ 82 ] [ 185 ] His inaugural lecture as Lucasian Professor of Mathematics was titled : `` Is the end in sight for Theoretical Physics '' and proposed N = 8 Supergravity as the leading theory to solve many of the outstanding problems physicists were studying .