I'm only counting 10 numbers. And I bet I can guess what number is missing.
Type: Posts; User: KevinWorkman
I'm only counting 10 numbers. And I bet I can guess what number is missing.
Using mod seems like a perfectly reasonable approach. Or you could turn it into a String and manipulate it that way. Whatever fits into your head the best.
How can numbers that begin or end in a non-prime (like 9) be truncatable primes?