Create euler_project_3.py

BinbinQi · web-flow · commit 61694de87d36 · 2021-01-03T15:06:55.000+08:00
diff --git a/PYTHON/euler_project_3.py b/PYTHON/euler_project_3.py
@@ -0,0 +1,14 @@
+import math
+ 
+a = 600851475143 
+def isprime(x):
+    for i in range(2,math.floor(math.sqrt(x))):
+        if x%i == 0:
+            return False
+    return True
+ 
+t = math.floor(math.sqrt(a));
+while not(isprime(t)) or a%t != 0:
+    t-=1
+    
+print(t)
