The number next to a contact is their Hot Score.
Hot Score measures how actively a prospect is engaging with your content.
Activities that increase the score include:
Watching videos
Completing surveys
Opening documents
Opting into email campaigns
Attending events
The score naturally decreases over time if there is no recent activity, helping you focus on prospects who are actively engaged.
When someone becomes a Hot Prospect, you'll receive a notification so you know it's a great time to follow up.