Solve e700 because I have looked at it a while ago and it is easy.

python/e700.py

@@ -0,0 +1,16 @@
+def euler_700():
+    mod = 4503599627370517
+    mul = 1504170715041707
+    result = mul
+    while mul > 1:
+        while mod > mul:
+            mod = mod % mul
+        mul -= mod
+        result += mul
+    return result
+
+
+if __name__ == "__main__":
+    solution = euler_700()
+    print("e700.py: " + str(solution))
+    assert solution == 1517926517777556