32^2 + 3^2
Each digit is a perfect square, and there is no smaller 4-digit prime with that property.
With digits reversed (9601) you get a different prime. 1069 is the smallest 4-digit number with this property.
I can't believe this thread got so far. And with so few mistakes.
1117...May be we get a call from some Cryptography or Security Co. :P
1123 The FBI will investigate this thread.
At the border of a prime desert. I.e., relatively speaking, it's a long way to the next prime.
From the other side of the world... 1151
33^2 + (2^3)^2
Seems like everything can be broken into 2s and 3s.
The smallest 4-digit prime such that any substring of length 2 yields only distinct primes (11, 17, 71).
Where do you come up with this stuff?
Reversed, it's also a prime (3911). By itself that's not big news. But the same fact holds for the next 9 primes (10 reversi-primes in a row, starting here) which we will see as we proceed...
The smallest 4-digit prime comprised of consecutive numbers (12,13).
Are we only 4?
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