You need at least two numbers to find something in common between them.
You need at least two numbers to have something in common.
You need at least two things to find something in common between them.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.
You need at least two numbers to find something in common.