1 files changed, 25 insertions, 0 deletions
diff --git a/047.py b/047.py
new file mode 100644
index 0000000..19f5185
--- /dev/null
+++ b/047.py
@@ -0,0 +1,25 @@
+from common import sieve
+
+primes = list(sieve(1000000).primes())
+primes.sort()
+
+factors = 4
+
+def check_prime_factors(x):
+	distinct = set()
+	for p in primes:
+		while x % p == 0:
+			x /= p
+			distinct.add(p)
+		if x == 1:
+			break
+	return len(distinct) == factors
+
+n = 644
+
+while True:
+	if check_prime_factors(n) and check_prime_factors(n+1) and check_prime_factors(n+2) and check_prime_factors(n+3):
+		print n
+		break
+	n += 1
+