Problem 41
Pandigital prime
We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.
What is the largest n-digit pandigital prime that exists?
全数字的素数
如果一个n位数恰好使用了1至n每个数字各一次,我们就称其为全数字的。例如,2143就是一个4位全数字数,同时它恰好也是一个素数。
最大的全数字的素数是多少?