Question

What is the largest two digit prime number whose digits are both
prime numbers?
bobpursley
I will be happy to critique your thinking.
Ash
well i know it has to begin and end with a 1,3,4,5, or 7.but i dnt know at to do after...
Ash
well i know it has to begin and end with a 1,3,4,5, or 7.but i dnt know at to do after
Kamil
75