Initial commit

problem-41.py

@@ -0,0 +1,25 @@
+
+MAX_NUM = 987654321
+
+def sieve_of_eratosthenes(limit):
+    a = [True] * limit                          # Initialize the primality list
+    a[0] = a[1] = False
+
+    for (i, isprime) in enumerate(a):
+        if isprime:
+            yield i
+            for n in range(i*i, limit, i):     # Mark factors non-prime
+                a[n] = False
+
+
+if __name__ == '__main__':
+    results = []
+    digits = '123456789'
+    primes = sieve_of_eratosthenes(MAX_NUM)
+    for prime in primes:
+        if ''.join(sorted(str(prime))) == digits[:len(str(prime))]:
+            results.append(prime)
+
+    print(results)
+
+