#!/usr/bin/env python3
import json,urllib.request,time
t=time.time()
p={"jsonrpc":"2.0","id":1,"method":"get_family","params":{"expr":"10^18+n","start":200,"limit":1000,"factors":True}}
r=urllib.request.urlopen(urllib.request.Request("https://factordb.com/rpc",data=json.dumps(p).encode(),headers={"Content-Type":"application/json"}),timeout=6)
o=json.load(r)
print("time",time.time()-t,"members",len(o["result"]["members"]),"last",o["result"]["members"][-1]["x"],"next",o["result"].get("next"))