# Number we know all prime numbers less than [duplicate]

We already know some very big prime numbers. ($2^{257,885,161} − 1$ as of time of writing is the largest known)

It is my understanding, that we know it is a prime number but we don't know all prime numbers smaller than it.

An equivalent of this is it is like if we know 7, 3 and 2 are prime numbers though we still haven't found 5.

My question is this, what is the largest prime number that we know all prime numbers smaller than it?

A link to a list of said prime numbers would also be heavily appreciated.