How to identify what program is running server on localhost 80 macbook

I've run

sudo lsof -i :80 | grep LISTEN results httpd 98 root 4u IPv6 0xfab47a9977e66253 0t0 TCP *:http (LISTEN) httpd 305 _www 4u IPv6 0xfab47a9977e66253 0t0 TCP *:http (LISTEN) httpd 1090 _www 4u IPv6 0xfab47a9977e66253 0t0 TCP *:http (LISTEN)

I need to identify the program and stop the server. Thanks!