What is the highest prime number above 53?

Answer 1

Perhaps what you mean to ask "What is the next Prime number above 53?". One cannot tell, as numbers are indeed infinite, what the highest prime number is. There is a team of scientists that, not too long ago, discovered a twelve-digit (I think twelve) prime number. Prime numbers, like numbers, are infinite and there is no way, therefore, to assess a 'highest' nor a 'lowest' numeral.