diff --git a/src/main/java/main/java/videos/PrimeNumberSieve.py b/src/main/java/main/java/videos/PrimeNumberSieve.py
new file mode 100644
index 0000000..145c105
--- /dev/null
+++ b/src/main/java/main/java/videos/PrimeNumberSieve.py
@@ -0,0 +1,18 @@
+def find_all_primes_upto(n):
+	touched = [False]*(n+1)
+	sqrtOfn = int(n**0.5)
+	
+	primes = []
+	
+	for i in range(2, sqrtOfn+1):
+		if not touched[i]:
+			for j in range(i*i, n+1, i):
+				touched[j] = True
+
+	for i in range(2, n+1):
+		if not touched[i]:
+			primes.append(i)
+
+	return primes
+
+# print(find_all_primes_upto(100))