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authorCharles <sircharlesaze@gmail.com>2019-08-11 22:41:34 +0200
committerCharles <sircharlesaze@gmail.com>2019-08-11 22:41:34 +0200
commit1879caa1dd80cb11dd62403663917ad4bf7cc68e (patch)
treeea41c6dd83a9f9bbfe0a891237674342de92d533 /wip/037-truncatable_primes.py
parent6b16d921543a62d880171791d39bcc58560785fa (diff)
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rename all file with 3 zero padding
Diffstat (limited to 'wip/037-truncatable_primes.py')
-rw-r--r--wip/037-truncatable_primes.py25
1 files changed, 25 insertions, 0 deletions
diff --git a/wip/037-truncatable_primes.py b/wip/037-truncatable_primes.py
new file mode 100644
index 0000000..1ad7d29
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+++ b/wip/037-truncatable_primes.py
@@ -0,0 +1,25 @@
+from helper.prime import primes_loop, is_prime
+
+
+def is_truncatable(prime):
+ p_str = str(prime)
+ for i in range(1, len(p_str)):
+ if not is_prime(int(p_str[i:])):
+ return False
+ for i in range(1, len(p_str)):
+ if not is_prime(int(p_str[:-i])):
+ return False
+ if prime in [2, 3, 5, 7]:
+ return False
+ return True
+
+
+trunc_p_list = []
+for p in primes_loop():
+ if is_truncatable(p):
+ trunc_p_list.append(p)
+ if len(trunc_p_list) == 11:
+ break
+
+print(trunc_p_list)
+print(sum(trunc_p_list))