Prime numbers in large number
05AB1E (legacy), 3 bytes
Œʒp
Try it online!
Substrings of the input that are prime.
Perl 6, 28 bytes
{grep &is-prime,+«m:ex/.+/}
Try it online!
The :ex
("exhaustive") flag to the match operator m
makes it return every possible match of .+
(ie, every substring of one or more characters), even overlapping ones. The hyperoperator +«
turns that list of Match
objects into numbers, which are then filtered for primeness by grep &is-prime
.
Python 2, 66 65 bytes
P=k=1
n=input()
while~n+k:
if`k`in`n`>0<P%k:print k
P*=k*k;k+=1
Try it online!