Skewes's number

In number theory, Skewes' number is any of several large numbers used by the South African mathematician Stanley Skewes as upper bounds for the smallest natural number for which where π is the prime-counting function and li is the logarithmic integral function. Skewes' number is much larger, but it is now known that there is a crossing near It is not known whether it is the smallest.

Skewes's number

In number theory, Skewes' number is any of several large numbers used by the South African mathematician Stanley Skewes as upper bounds for the smallest natural number for which where π is the prime-counting function and li is the logarithmic integral function. Skewes' number is much larger, but it is now known that there is a crossing near It is not known whether it is the smallest.