common denominator

Akimoto laughed off the suggestion, but expressed frustration about technology's ability to mine data and find the "maximum common denominator".

They say he was the "common denominator" in all the poisoning cases.

But she found it to be the only common denominator.

Each of these dogs is a common denominator for several people, a source of their connection and shared joy.

“L.A. is really yearning for that community and I think this is something that really gives people of any age a place to connect, and it’s such an easy common denominator.”