The least number that cannot be written using the numbers 1, 2, and 3, each exactly once, and any combination of standard arithmetic operations (including factorials) is 41. What is the least such number if the numbers 1, 2, 3, and 4 are allowed?
Allowed operations are addition, subtraction, multiplication, division, factorials, exponents, square roots, intermediate non-integer results, and any amount of parenthesis and brackets. No other digits besides one of each of 1, 2, 3, and 4.
(This is basically what a person asked 4 years ago but just without using 0)
(I have all the numbers except 86, 93,)