97501 and 24683 will get you all of the numbers (and maybe some position matches), from there it becomes much easier.
Primel – guess a 5 digit prime number – each guess must be a prime
11–20 of 139 posts
Re: Primel – guess a 5 digit prime number – each guess must be a prime
#12 12347
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65393
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[solution next - omitted for spoiler reasons]
I was more surprised about how little trial and error I needed to find primes than about how few guesses it actually took...Re: Primel – guess a 5 digit prime number – each guess must be a prime
#13Earlier quoted context omitted.
It's not a 5 digit prime.
0 is a digit. Apparently I have stumbled over an idiom of the prime-enthusiast community.
E.g. 3 is a 1 digit number because that's the number of digits needed to uniquely identify 3. There are infinitely more ways to identify 3 the number with padded 0s but those aren't useful unless you're talking about combinations/sequences of groups of digits (like random numbers or PIN codes) instead of actual number values.
Re: Primel – guess a 5 digit prime number – each guess must be a prime
#14Re: Primel – guess a 5 digit prime number – each guess must be a prime
#15Re: Primel – guess a 5 digit prime number – each guess must be a prime
#16Earlier quoted context omitted.
It's not a 5 digit prime.
0 is a digit. Apparently I have stumbled over an idiom of the prime-enthusiast community.
Re: Primel – guess a 5 digit prime number – each guess must be a prime
#17So are people just really good with numbers? I don't know any 5 digit primes nor do I know a way to calculate them on the fly.
That got me two substantially-different primes and narrowed my numbers a lot, which then became guesswork.
My guesses in the end:
-?---
?---!
?-??!
?!??!
!!!!!Re: Primel – guess a 5 digit prime number – each guess must be a prime
#1812347 - 65393 ++-- [solution next - omitted for spoiler reasons] I was more surprised about how little trial and error I needed to find primes than about how few guesses it actually took...
12347
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[solved]Re: Primel – guess a 5 digit prime number – each guess must be a prime
#19Now come up with a hash that starts with many zeroes.
Re: Primel – guess a 5 digit prime number – each guess must be a prime
#20So are people just really good with numbers? I don't know any 5 digit primes nor do I know a way to calculate them on the fly.
Being a little smarter, prime number can only end in a 1, 3, 7 or 9 - (ending in 0, 2, 4, 6, 8 would be even, ending in 5 would be odd), so in fact it's more like 25% of 'likely' guesses.