20 and 30 could be two such numbers.
You need at least two numbers to compare multiples.
All nonzero numbers have multiples. Any two numbers will have an infinite number of multiples in common. The smallest of these is known as the least common multiple, or LCM.
You need at least two numbers to find something in common.
The common multiples of 9 and 16 are 144, 288, 432 and so on.
Those are known as "common multiples". The smallest POSITIVE of these common multiples is called the "least common multiple".
At least two numbers are needed to answer this.
You need at least two numbers to find an LCM.
You need at least two numbers to find an LCM.
You need at least two numbers to find an LCM.
You need at least two numbers to find an LCM.
You need at least two numbers to find an LCM.
You need at least two numbers to find an LCM.