Create n_primes.py

Author: Tanmay-901

n_primes.py

@@ -0,0 +1,9 @@
+# Eratosthenes application of sieve algorithm
+def eratosthenes2(n):
+    multiples = set()
+    for i in range(2, n+1):
+        if i not in multiples:
+            yield i
+            multiples.update(range(i*i, n+1, i))
+
+primes = list(eratosthenes2(4000000))