The number isn’t important; the quality of your contacts is what matters. LinkedIn was founded in 2002, by Jean-Luc Vaillant, Reid Hoffman, Eric Ly, Allen Blue, and Konstantin Guericke. However, it wasn't until 2003 when the site officially launched.
The purpose of LinkedIn is to network with fellow employees and employers. The service is a website, as well as a mobile application. It helps people find jobs and create relationships with those in their field. The site has an approximate 332 million members, with millions more unique visitors viewing the platform every day.